[wp-trac] [WordPress Trac] #45217: Allow falling back to classic editor via meta box registration.

[WordPress Trac]

#45217: Allow falling back to classic editor via meta box registration.
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 Reporter:  peterwilsoncc  |       Owner:  (none)
     Type:  enhancement    |      Status:  new
 Priority:  normal         |   Milestone:  5.0
Component:  Editor         |     Version:
 Severity:  normal         |  Resolution:
 Keywords:  needs-patch    |     Focuses:
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Comment (by peterwilsoncc):

 In [attachment:"45217.diff"]:

 * Introduces the `classic-editor` query string override for forcing
 fallback to the classic editor
 * Adds a function `use_block_editor_with_meta_boxes()` for compatibility
 checking
 * Calls the new function as a part of `use_block_editor_for_post()`
 * Adds a second ''late'' check and forces a redirect in `src/wp-admin
 /edit-form-blocks.php` to allow for meta boxes registered after the
 `do_meta_boxes` actions are fired.

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Ticket URL: <https://core.trac.wordpress.org/ticket/45217#comment:2>
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