[wp-trac] [WordPress Trac] #35316: Images with latin extended characters in exif (slovak/czech) are missing thumbnails

[WordPress Trac]

#35316: Images with latin extended characters in exif (slovak/czech) are missing
thumbnails
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 Reporter:  michalrusina  |       Owner:
     Type:  defect (bug)  |      Status:  reopened
 Priority:  normal        |   Milestone:  4.4.2
Component:  Media         |     Version:  4.4
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |     Focuses:
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Comment (by pavelevap):

 @ocean90: You are right, chars are probably stripped inside
 `strip_invalid_text()`:
 https://core.trac.wordpress.org/browser/tags/4.4.1/src/wp-includes/wp-
 db.php#L2788
 And that is why `process_fields()` returns `false` here:
 https://core.trac.wordpress.org/browser/tags/4.4.1/src/wp-includes/wp-
 db.php#L2085

 Function returns only 2 keywords, but Windows shows 3 (see attached
 screenshot). I am not sure what is wrong.

 Encoding: Yes, also `caption` (later saved as `post_excerpt`) is wrong:
 `Gabèíkovo` should be `Gabčíkovo`. Also `copyright` is wrong, `title`
 probably does not contain problematic chars.

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Ticket URL: <https://core.trac.wordpress.org/ticket/35316#comment:14>
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