[wp-trac] [WordPress Trac] #31777: sanitize_text_field() stripping instances "%ca"

[WordPress Trac]

#31777: sanitize_text_field() stripping instances "%ca"
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 Reporter:  lieutenantdan  |       Owner:  (none)
     Type:  defect (bug)   |      Status:  new
 Priority:  normal         |   Milestone:
Component:  General        |     Version:  4.1.1
 Severity:  normal         |  Resolution:
 Keywords:                 |     Focuses:
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Comment (by SergeyBiryukov):

 Hi there, welcome to WordPress Trac! Thanks for the ticket, sorry it took
 so long for someone to get back to you.

 Just noting that the function also appears to strip `%de` from
 `%description%`, per #56430.

 I think comment:1 is accurate and this has to do with URL encoding, so
 there might be other character sequences in the form of `%aa` to `%ff`
 that would also be stripped.

 Related: #53019

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Ticket URL: <https://core.trac.wordpress.org/ticket/31777#comment:3>
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