[wp-trac] [WordPress Trac] #46297: Unable to edit specific terms : rest_cannot_assign_term OR 403

[WordPress Trac]

#46297: Unable to edit specific terms : rest_cannot_assign_term OR 403
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 Reporter:  enps5         |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Taxonomy      |     Version:  4.1
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by Fraktjakt):

 Noticed too late that one of my sites never split its terms after
 updating. And your suggested plugin WP Find_shared_terms fails at
 splitting the terms as well.
    Splitting post_tag "zzz"
       ERROR: Term Taxonomy ID yyy could not be split!
 etc etc...
 Stops authors from posting content with categories that shares term with a
 tag and so on.
 It seems as though both post_tags, categories and nav_menu shares the same
 ID when they have used the same string. Is that why the split command
 isn't working? When nav menu items are involved? Or is it a server
 setting?
 Any idea on how to solve it?

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Ticket URL: <https://core.trac.wordpress.org/ticket/46297#comment:8>
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