[wp-meta] [Making WordPress.org] #1867: Some links are broken

[Making WordPress.org]

#1867: Some links are broken
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 Reporter:  extendwings           |       Owner:
     Type:  defect                |      Status:  new
 Priority:  high                  |   Milestone:
Component:  International Forums  |  Resolution:
 Keywords:                        |
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Comment (by SergeyBiryukov):

 Same on Russian forums.

 Some topics slugs cannot be urldecoded correctly due to being cut in the
 middle of a UTF-8 sequence, but somehow still work:
 *
 https://ru.wordpress.org/support/topic/%d0%a1%d0%b2%d0%be%d1%80%d0%be%d0%b2%d0%b0%d0%bb%d0%b8-%d0%bd%d0%b0%d1%88%d1%83-%d1%80%d0%b0%d0%b7%d1%80%d0%b0%d0%b1%d0%be%d1%82%d0%ba%d1%83-%d0%b8-%d0%b2%d1%8b%d0%bb%d0%be%d0%b6%d0%b8%d0%bb%d0%b8-%d0/
 *
 https://ru.wordpress.org/support/topic/%d0%9a%d0%b0%d0%ba-%d0%bf%d0%be%d0%bc%d0%b5%d0%bd%d1%8f%d1%82%d1%8c-%d0%bc%d0%b5%d1%81%d1%82%d0%b0%d0%bc%d0%b8-%d1%81%d0%b0%d0%b9%d0%b4%d0%b1%d0%b0%d1%80-%d0%b8-%d0%be%d1%81%d0%bd%d0%be%d0%b2%d0%bd%d0/

 Others are completely broken and produce a 400 Bad Request error:
 *
 https://ru.wordpress.org/support/topic/%d0%ba%d0%b0%d0%ba-%d0%be%d1%82%d0%ba%d0%bb%d1%8e%d1%87%d0%b8%d1%82%d1%8c-%d1%8d%d0%ba%d1%80%d0%b0%d0%bd%d0%b8%d1%80%d0%be%d0%b2%d0%b0%d0%bd%d0%b8%d0%b5-%d0%ba%d0%b8%d1%80%d0%b8%d0%bb%d0%bb%d0%b8%d1%8/
 *
 https://ru.wordpress.org/support/topic/%D0%9D%D0%B0-%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE%D0%BC-%D1%88%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD%D0%B5-%D0%BC%D0%BE%D0%B6%D0%BD%D0%BE-%D0%B4%D0%B5%D0%BB%D0%B0%D1%82%D1%8C-%D0%BC%D0%BD%D0%BE%D0%B3%D0%BE-%d/

 @jmdodd: Is there a way to find and fix all the affected topics?

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Ticket URL: <https://meta.trac.wordpress.org/ticket/1867#comment:1>
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