Commons:History merging and splitting

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Visualization of the merging process.

Shortcuts: COM:HMS • COM:HISTMERGE This page provides information on issues and solutions relating pages and files that underwent cut-and-paste moves (which its history has to be put back together), and inappropriate merging/overwriting (of which its history needs to be split).

History merging

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Shortcut

Because most users have the ability to use the move page function, cut-and-paste moves are usually done by people who are not aware of that function, or when the move function fails (e.g. because the target has history), and people who aren't aware of the Administrators Noticeboard forum to ask for help from an administrator.

When a cut-and-paste move is done, the page history of a page can be split among two or more different pages. This is very undesirable, because we need to keep the history with the content for copyright reasons. In most circumstances, administrators are able to fix this by merging page histories.

Instructions for admins
  1. Temporarily delete NewPage
  2. Move OldPage to NewPage, using the move functionality. (In case it is a file, you have to open the Move & Replace link in a new tab or disable AjaxQuickDelete in your preferences.) (Now the old history versions are the whole of the new title’s.)
  3. Undelete the NewPage page, by:
    1. Viewing the page/file history
    2. Clicking “View or restore … deleted edits?”, and
    3. Clicking on “Restore!”. (Now the new title’s history has both the old and new versions, including an extra copy of the most recent version of OldPage, created by the move tool.)
  4. At this stage, NewPage will only show the text “#REDIRECT NewPage” (assuming a redirect was the most recent version of OldPage, the NewPage page will now be showing whatever the most recent version of OldPage was). The last step is to revert (or RevisionDelete) to the last version of NewPage from before the move.

Special:MergeHistory makes it possible to automatically merge the history of two pages.


History splitting

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Shortcut

Over time, pages or files may change from one underlying topic to a completely separate topic. Normally, this should be accomplished through moves of pages, or by reuploading an altered file on a slightly different title. However, if a user is unfamiliar with those processes they may simply change the subject of a page or file (overwriting the old). If this is not caught immediately it is very easy for the new topic to build up a substantial edit history of its own.

Instructions for admins
  1. Temporarily delete the page/file (original title)
  2. Restore previous revisions up to (but not including) the point where the topic was changed.
  3. Move (without redirect) the restored versions (old topic) to the desired new title. (In case it is a file, you have to open the Move & Replace link in a new tab or disable AjaxQuickDelete in your preferences.)
    • If there’s already a file or page under the new title and you wish to histmerge into it:
    a) select the “delete the existing article” option, while moving;
    b) restore deleted revisions of new title.
  4. Restore new revisions of new topic (still at original title).

A history merge could also be undone in this way.

Requesting a merge or split

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To request a merge or split, fill the following template, and submit it at the bottom of this page. Remember, both files need to be of the same type. Merging of more than two files may also be possible in some cases. 


== [[:FILE/PAGE 1]] → [[:FILE/PAGE 2]] ==
* Request: [Split or Merge]
* Reason:
--~~~~
  • For merges, replace FILE/PAGE 2 with the page you want FILE/PAGE 1 contents to be merged into.
  • For splits, replace FILE/PAGE 2 with the new filename which you want the newer content to be moved from FILE/PAGE 1.
 

Add a new request

Shortcut

Current requests

View Edit Add topic

 See also categories: Media requiring a split up and Requested merges.

File:PZL-Mielec Lim-6R (7-28-2023) (cropped).jpg → File:PZL-Mielec Lim-6R (7-28-2023).jpg

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  • Request: Merge
  • Reason: I intended to crop the original image, but accidentally saved it as a new file.

--ZLEA T\C 19:37, 28 November 2024 (UTC)[reply]

 Not done - For substantial changes, Commons recommend not to overwrite cropped images. See Commons:Overwriting existing files --Sreejith K (talk) 16:04, 30 November 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 16:04, 30 November 2024 (UTC)

File:NZ Terra Nova ensign.svg → File:National flag of New Zealand to Terra Nova.svg

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  • Request: [Merge]
  • Reason:Both files represent the same flag, but the second one has more accurate details.

--Swiãtopôłk (talk) 20:04, 28 November 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 16:04, 30 November 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 16:04, 30 November 2024 (UTC)

File:BBC Two logo (Chameleon 2021-22 rebrand).svg → File:BBC Two logo 2021.svg

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  • Request: [Merge]
  • Reason: Both files are essentially same image and same file size (512 x 289). So, both files need to be merge as a single file with File:BBC Two logo 2021.svg as the name for both combined files.

--Yayan550 (talk) 12:24, 1 December 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 04:51, 2 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 04:51, 2 December 2024 (UTC)

File:BBC One logo (Chameleon 2021-22 rebrand).svg → File:BBC One logo 2021.svg

[edit]
  • Request: [Merge]
  • Reason: Both files are essentially same image and same file size (512 x 333). So, both files need to be merge as a single file with File:BBC One logo 2021.svg as the name for both combined files. Yayan550 (talk) 00:28, 2 December 2024 (UTC)[reply]
✓ Done --Sreejith K (talk) 04:51, 2 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 04:51, 2 December 2024 (UTC)

File:BBC Four logo (Chameleon 2021-22 rebrand).svg → File:BBC Four logo 2021.svg

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  • Request: [Merge]
  • Reason: Both files are essentially same image and same file size (512 x 258). So, both files need to be merge as a single file with File:BBC Four logo 2021.svg as the name for both combined files.

Yayan550 (talk) 00:30, 2 December 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 04:51, 2 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 04:51, 2 December 2024 (UTC)

File:BBC Three logo (Chameleon 2021-22 rebrand).svg → File:BBC Three 2022.svg

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  • Request: [Merge]
  • Reason: Both files are essentially same image and same file size (1,332 x 547). So, both files need to be merge as a single file with File:BBC Three 2022.svg as the name for both combined files. Yayan550 (talk) 00:32, 2 December 2024 (UTC)[reply]
✓ Done --Sreejith K (talk) 04:51, 2 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 04:51, 2 December 2024 (UTC)

File: BBC America 2021.svg → File: BBC America logo 2022.svg

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  • Request: Split
✓ Done --Sreejith K (talk) 04:36, 3 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 04:36, 3 December 2024 (UTC)

File:BBC News (red and white).svg → File:BBC News (2008).svg

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✓ Done --Sreejith K (talk) 04:39, 3 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 04:39, 3 December 2024 (UTC)

File: BBC America 2021.svg → File:BBC America logo 2021.svg

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✓ Done --Sreejith K (talk) 03:43, 5 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 03:43, 5 December 2024 (UTC)

Category:ABC Family → Category:Freeform

[edit]
  • Request: [Merge]
 Not done - No explanation given. --Sreejith K (talk) 03:43, 5 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 03:43, 5 December 2024 (UTC)

File:ABC (2013) Blue.svg

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  • Request: Split
  • Comment Not sure what the rationale behind the split of this file, so maybe it needs to be declined until there's a reason for split the file from the nominator that wants to split the file. 114.10.71.197 18:50, 3 December 2024 (UTC)[reply]
 Not done - No reason given. --Sreejith K (talk) 03:45, 5 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 03:45, 5 December 2024 (UTC)

File:ABC (2013) Dark Grey.svg

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  • Request: Split
  • Comment Not sure what the rationale behind the split of this file, so maybe it needs to be declined until there's a reason for split the file from the nominator that wants to split the file. 114.4.214.164 19:07, 3 December 2024 (UTC)[reply]
 Not done - No reason given. --Sreejith K (talk) 03:45, 5 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 03:45, 5 December 2024 (UTC)

File:ABC (2013) Gold.svg

[edit]
  • Request: Split
  • Comment Not sure what the rationale behind the split of this file, so maybe it needs to be declined until there's a reason for split the file from the nominator that wants to split the file. 114.10.71.197 18:57, 3 December 2024 (UTC)[reply]
 Not done - No reason given. --Sreejith K (talk) 03:45, 5 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 03:45, 5 December 2024 (UTC)

File:ABC (2013) Red.svg

[edit]
  • Request: Split
  • Comment Not sure what the rationale behind the split of this file, so maybe it needs to be declined until there's a reason for split the file from the nominator that wants to split the file. 114.10.71.197 18:50, 3 December 2024 (UTC)[reply]
 Not done - No reason given. --Sreejith K (talk) 03:46, 5 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 03:46, 5 December 2024 (UTC)

File:ABC-2021-LOGO.svg

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 Not done - No reason given. --Sreejith K (talk) 03:46, 5 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 03:46, 5 December 2024 (UTC)

Category: The Family Channel (American TV network, founded 1990) → Category:Freeform

[edit]
 Not done - No reason given. --Sreejith K (talk) 03:46, 5 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 03:46, 5 December 2024 (UTC)

File:CBSLA23.svg → File:CBS Los Angeles logo.svg

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  • Request: [Merge]
  • Reason: Both files are same image (except the former file had 1,625 x 138 while the latter file had 512 x 39), so it is more necessary to merge them as a single file with File:CBS Los Angeles logo.svg as the name for both combined files.

--Yayan550 (talk) 23:22, 5 December 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 21:51, 6 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 21:51, 6 December 2024 (UTC)

File:WCCO-TV logo.svg → File:WCCO-TV logo (2023).svg

[edit]
  • Request: [Merge]
  • Reason: Both files are same image (except the former file had the size of 21 KB while the latter file had 6 KB file size), so it is more necessary to merge them as a single file with File:WCCO-TV logo (2023).svg as the name for both combined files. Yayan550 (talk) 00:30, 6 December 2024 (UTC)[reply]
✓ Done --Sreejith K (talk) 21:52, 6 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 21:52, 6 December 2024 (UTC)

File:WJZ-TV logo.svg → File:WJZ-TV logo (2023).svg

[edit]
  • Request: [Merge]
  • Reason: Both files are same image (except the former file had 19 KB size while the latter file had 5 KB file size), so it is more necessary to merge them as a single file with File:WJZ-TV logo (2023).svg as the name for both combined files. Yayan550 (talk) 00:33, 6 December 2024 (UTC)[reply]
✓ Done --Sreejith K (talk) 21:52, 6 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 21:52, 6 December 2024 (UTC)

File:Jinx 1919.jpg → File:A scene from "Jinx" (SAYRE 13489).jpg

[edit]
  • Request: Merge
  • Reason: The two images are identical, one is a low-resolution duplicate of the other.

--Colohisto (talk) 00:05, 7 December 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 06:21, 8 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 06:21, 8 December 2024 (UTC)

FILE:Visa_requirements_for_Canadian_citizens(1).svg → FILE:Visa_requirements_for_Canadian_citizens.svg

[edit]
  • Request: Merge
  • Reason: someone uploaded a new file instead of a new version

--Akeosnhaoe (talk) 07:33, 8 December 2024 (UTC)[reply]

✓ Done --Sreejith K (talk) 22:16, 8 December 2024 (UTC)[reply]
Checkmark This section is resolved and can be archived. If you disagree, replace this template with your comment. --Sreejith K (talk) 22:16, 8 December 2024 (UTC)

See also

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Retrieved from "https://commons.wikimedia.org/w/index.php?title=Commons:History_merging_and_splitting&oldid=881204905#History_splitting"