[wp-trac] [WordPress Trac] #47912: Non-visible chars in title creates some encoded values in permalink

[WordPress Trac]

#47912: Non-visible chars in title creates some encoded values in permalink
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 Reporter:  dhanendran               |       Owner:  SergeyBiryukov
     Type:  defect (bug)             |      Status:  accepted
 Priority:  normal                   |   Milestone:  5.3
Component:  Permalinks               |     Version:  5.2.2
 Severity:  major                    |  Resolution:
 Keywords:  needs-patch needs-unit-  |     Focuses:  ui, rtl,
  tests                              |  administration
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Comment (by SergeyBiryukov):

 The characters are generally added on a case-by-case basis, not all at
 once.

 Let's start with these two here:

 * [https://www.fileformat.info/info/unicode/char/2000/index.htm en quad],
 `%e2%80%80` (from the screenshot).
 * [https://en.wikipedia.org/wiki/Byte_order_mark byte order mark],
 `%ef%bb%bf`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/47912#comment:3>
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