[wp-trac] [WordPress Trac] #46195: is_block_editor() returns false in the block editor

[WordPress Trac]

#46195: is_block_editor() returns false in the block editor
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 Reporter:  Chouby                   |       Owner:  (none)
     Type:  defect (bug)             |      Status:  new
 Priority:  normal                   |   Milestone:  5.1.1
Component:  Editor                   |     Version:  5.0
 Severity:  normal                   |  Resolution:
 Keywords:  has-patch needs-testing  |     Focuses:  administration
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Comment (by desrosj):

 After giving it a bit more thought, I think including the changes in
 [attachment:"46195.2.diff"]  makes sense. This would catch:

 - A situation where someone loads `wp-admin/edit-form-blocks.php` on their
 own.
 - Establish the default value for the post type in the current screen
 early.
 - The block editor can still be switched with `use_block_editor_for_post`
 for new posts after the post is created.

 The downfall of both these approaches, though, is that the support
 indicated when `current_screen` is fired and later on in the process that
 value could be different. This can be avoided by using the blanket
 `use_block_editor_for_post_type` filter whenever possible (not filtering
 dependent on data specific to an existing post).

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Ticket URL: <https://core.trac.wordpress.org/ticket/46195#comment:7>
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