[wp-trac] [WordPress Trac] #54847: Block locks up, cannot edit header/paragraph text

[WordPress Trac]

#54847: Block locks up, cannot edit header/paragraph text
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 Reporter:  TylerTork     |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Editor        |    Version:  5.8.3
 Severity:  critical      |   Keywords:
  Focuses:                |
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 If using a Columns block with text within the column -- a Paragraph or
 Heading block -- I can cause the text block to "lock up" and not allow
 further editing of the text by clicking to place the text cursor within
 the block, then clicking elsewhere in the same block while holding down
 Shift.

 The block gains a blue outline and the text cursor disappears. All other
 Heading and Paragraph blocks start behaving in the same way. There are no
 error messages in the browser console.

 The only way I've found to unlock the block to allow further editing, is
 to delete it then restore it with Ctrl+Z.

 Using WP 5.8.3 and latest Firefox browser, Neve theme (but I've seen this
 with other themes also, including Graphene). All plugins deactivated.
 Cleared all caches. Problem has also been confirmed to occur in Chrome.

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Ticket URL: <https://core.trac.wordpress.org/ticket/54847>
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