[wp-trac] [WordPress Trac] #57300: parse_tax_query() does not handle array query param when taxonomy has rewrite set to hierarchical

[WordPress Trac]

#57300: parse_tax_query() does not handle array query param when taxonomy has
rewrite set to hierarchical
---------------------------+------------------------------
 Reporter:  chamois_blanc  |       Owner:  (none)
     Type:  defect (bug)   |      Status:  new
 Priority:  normal         |   Milestone:  Awaiting Review
Component:  Taxonomy       |     Version:  6.1.1
 Severity:  major          |  Resolution:
 Keywords:  has-patch      |     Focuses:
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Comment (by pskli):

 Sorry, my latest comment is not correct: this issue is triggered if the
 taxonomy `rewrite->hierarchical` is set to `true`.

 **Steps to recreate on a fresh install**
 - Register a new post type and taxonomy. Post type needs an archive and
 taxonomy needs `rewrite.hierarchical` set to true. Gist for that step
 available here: https://gist.github.com/pierre-
 dekode/c934284b88ebf0a31f4e433f265c4a64
 - Flush permalinks
 - Visit the post type archive with `?taxonomy[]=something` query arg in
 URL. Example with Gist provided above:
 `http://<yoursite.local>/my_custom_post_type/?my_taxonomy[]=something`

 This will trigger the fatal error.

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Ticket URL: <https://core.trac.wordpress.org/ticket/57300#comment:7>
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