[wp-trac] [WordPress Trac] #62529: After upgrading to version 6.7.1 manually applying the default category to a post also applies multple unrelated terms

[WordPress Trac]

#62529: After upgrading to version 6.7.1 manually applying the default category to
a post also applies multple unrelated terms
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 Reporter:  esgeiger      |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Taxonomy      |    Version:  6.7.1
 Severity:  normal        |   Keywords:
  Focuses:                |
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 Our main site uses a custom theme with the classic editor.
 After upgrading to version 6.7.1, manually applying the default category
 to a post also applies multiple unrelated terms.
 I suspect that the change made to fix bug #62440
 (https://core.trac.wordpress.org/ticket/62440) is a contributing factor,
 because after downgrading to 6.7 the problem no longer occurred.
 I've disabled all plugins but that made no difference, so it's not a
 plugin conflict.
 I switched to another theme that uses the classic editor, with the Classic
 Editor plugin and the problem continued, so I don't believe it is a
 problem in our custom theme. I've  checked the debug and PHP error logs
 but found nothing relevant.

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Ticket URL: <https://core.trac.wordpress.org/ticket/62529>
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