[wp-trac] [WordPress Trac] #53756: Can’t Change Tags’ Letter Case

[WordPress Trac]

#53756: Can’t Change Tags’ Letter Case
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 Reporter:  pugs          |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Taxonomy      |     Version:  5.8
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by Presskopp):

 You can create a tag directly editing a post or you can create/edit them
 in Posts/Tags. For every tag a slug is created, which will be all
 lowercase by design. So for a tag "Denmark" the slug would be "denmark",
 and if you then add a lowercase tag "denmark" the slug would be the same
 and the tag won't be created therefore. In the post view, after a reload
 newly created tags vanish (fail silently), which would be identical in
 slug. In the tags view, an error will be given "A term with the name
 provided already exists in this taxonomy." in this case.

 So the tag will "survive" which was created at first, the name can then be
 lower or uppercase.

 In other words: Only the name can be uppercase, but not the slug. Tags
 with the same slug will be dropped.

 We could consider to throw the error mentioned above also in the post edit
 screen instead of just silenty fail.

 Still for me this is no bug, but a "wontfix" and/or "worksforme"

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Ticket URL: <https://core.trac.wordpress.org/ticket/53756#comment:2>
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