[wp-trac] [WordPress Trac] #55426: Two Categories in one URL; Shows Posts that are in BOTH Categories doesn’t work

[WordPress Trac]

#55426: Two Categories in one URL; Shows Posts that are in BOTH Categories doesn’t
work
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 Reporter:  gooloode      |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  5.9.2
 Severity:  normal        |   Keywords:
  Focuses:                |
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 Hey,

 so usually i was able to add two categories in the URL and it would only
 show Posts, that are listed in BOTH categories. The Link was always
 domain.com/category/cat1+cat2 and worked for years. When using that link
 it would only show the posts that are marked in BOTH categories.

 But i just tried to look for a post this way and that simply doesn’t work
 anymore. It only uses the first Category and ignores the Seconds. Has
 there been a change in the WP Core that i’m not aware of and is there a
 way to get back to that?

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Ticket URL: <https://core.trac.wordpress.org/ticket/55426>
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