[wp-trac] [WordPress Trac] #58109: Fatal Error when changed Taxonomy from hierarchical False to True

[WordPress Trac]

#58109: Fatal Error when changed Taxonomy from hierarchical False to True
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 Reporter:  narenin       |       Owner:  (none)
     Type:  defect (bug)  |      Status:  closed
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Taxonomy      |     Version:  6.2
 Severity:  normal        |  Resolution:  invalid
 Keywords:                |     Focuses:  administration, coding-standards
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Changes (by narenin):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 Please find the steps below.

 1. Create a **non-hierarchical** custom taxonomy using
 **register_taxonomy**
 2. Now go to post and then assign some terms of that taxonomy to posts and
 then publish the post.
 3. Now change that **non-hierarchical** custom taxonomy to
 **hierarchical** custom taxonomy by using **hierarchical=>true**
 4. Now go to that post and try to save that post, you should get fatal
 error.

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Ticket URL: <https://core.trac.wordpress.org/ticket/58109#comment:2>
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