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List v2: fix migration when nested list is invalid #44822

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merged 2 commits into from
Oct 28, 2022

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ellatrix
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@ellatrix ellatrix commented Oct 10, 2022

What and why?

This should fix #44757. The problem with this list is that there's multiple nested lists inside one list item, which is (for us) invalid. Thankfully we have existing code that takes care of this in the raw handler, but we're not making use of it. This PR changes list migration so that it now runs through the raw handler, which fixes the lists.

How?

Use the rawHandler.

Testing Instructions

See #44757 and added test.

Screenshots or screencast

@ellatrix ellatrix added [Type] Bug An existing feature does not function as intended [Block] List Affects the List Block labels Oct 10, 2022
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github-actions bot commented Oct 10, 2022

Size Change: +1.69 kB (0%)

Total Size: 1.27 MB

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@ellatrix ellatrix added the Backport to WP 6.7 Beta/RC Pull request that needs to be backported to the WordPress major release that's currently in beta label Oct 11, 2022
@michalczaplinski
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👋 Hi there! Is this intended to be merged before the RC2 tomorrow?

@ellatrix
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This should be merged, yes, but needs a review.

@cbravobernal
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cbravobernal commented Oct 24, 2022

The fix is not working in my environment :-(

Gutenberg: Version 14.4.0-rc.1
WP: 6.2-alpha-54646)

I'm using

<!-- wp:list -->

<ul><li><strong>Item</strong><ul><li><strong>Item</strong><ul><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a href="#" target="_blank" rel="noreferrer noopener">Item</a></li></ul></li></ul><ul><li><strong>Item</strong><ul><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a rel="noreferrer noopener" href="#" target="_blank"><strong>Item</strong></a></li><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li></ul></li></ul><ul><li><strong>Item</strong><ul><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li><li><a rel="noreferrer noopener" href="#" target="_blank">Item</a></li></ul></li></ul></li></ul>

<!-- /wp:list -->
Screen.Recording.2022-10-24.at.17.27.44.mov

@ellatrix
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ellatrix commented Oct 26, 2022

@c4rl0sbr4v0 I tried your HTML and it's working fine? Note that this PR will not fix list blocks if they're already migrated. Only unmigrated blocks. So create a new post with your content to test the PR.

@mcsf mcsf merged commit 3c9a020 into trunk Oct 28, 2022
@mcsf mcsf deleted the fix/invalid-list-migration branch October 28, 2022 18:39
@github-actions github-actions bot added this to the Gutenberg 14.5 milestone Oct 28, 2022
@ironprogrammer
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As this is being discussed for backport to WordPress 6.1.1 or as a possible RC6 candidate, here is an additional report confirming reproduction in 6.1-RC5 and patch efficacy:

Reproduction Report

Environment

  • Hardware: MacBook Pro Apple M1 Pro
  • OS: macOS 12.6
  • Browser: Safari 16.0
  • Server: nginx/1.23.2
  • PHP: 7.4.32
  • WordPress: 6.1-RC5-54715-src
  • Theme: twentytwentythree v1.0
  • Active Plugins:
    • gutenberg NOT active

Actual Results

  • ✅ Non-migrated List block markup (from Issue 44757) necessitates block recovery, and recovered nested list elements are treated as one list item, causing odd editing behaviors.

Patch Test Report

Environment

Actual Results

  • ✅ Patch allows non-migrated List block markup to be edited as expected. Block recovery still required.

Supplemental Artifacts

Repro Patched
repro patch

@Mamaduka Mamaduka added Backport to WP Minor Release Pull request that needs to be backported to a WordPress minor release and removed Backport to WP 6.7 Beta/RC Pull request that needs to be backported to the WordPress major release that's currently in beta labels Nov 10, 2022
Mamaduka pushed a commit that referenced this pull request Nov 10, 2022
* List v2: fix migration when nested list is invalid

* Reduce test case
Mamaduka pushed a commit that referenced this pull request Nov 10, 2022
* List v2: fix migration when nested list is invalid

* Reduce test case
@Mamaduka Mamaduka removed the Backport to WP Minor Release Pull request that needs to be backported to a WordPress minor release label Mar 29, 2023
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Labels
[Block] List Affects the List Block [Type] Bug An existing feature does not function as intended
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List v2: Lists with 3 levels are impossible to edit without breaking after Gutenberg 14
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