[wp-trac] [WordPress Trac] #55401: Subpages of a web page can be called twice

[WordPress Trac]

#55401: Subpages of a web page can be called twice
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 Reporter:  manuel10503                          |       Owner:  (none)
     Type:  defect (bug)                         |      Status:  new
 Priority:  normal                               |   Milestone:  Awaiting
                                                 |  Review
Component:  Permalinks                           |     Version:  5.9.3
 Severity:  major                                |  Resolution:
 Keywords:  needs-patch dev-feedback needs-      |     Focuses:
  refresh needs-dev-note                         |
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Comment (by manuel10503):

 There is a similar problem with special characters. If a special character
 is appended to the URL of a subpage, this subpage can also be called up
 with these special characters (+, -,...). These generated pages do not
 have a canonical metatag and therefore have little impact for SEO, but
 they should still be cleaned up.

 Example
 Original page: https://wptavern.com/wordcamp-us-2023-contributor-day-
 signup-is-open

 Page with special characters in the URL: https://wptavern.com/wordcamp-
 us-2023-contributor-day-signup-is-open-

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Ticket URL: <https://core.trac.wordpress.org/ticket/55401#comment:8>
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