[wp-trac] [WordPress Trac] #47546: The language used for the `lang` attribute isn't validated before being used

[WordPress Trac]

#47546: The language used for the `lang` attribute isn't validated before being
used
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 Reporter:  johnbillion                |       Owner:  (none)
     Type:  defect (bug)               |      Status:  new
 Priority:  low                        |   Milestone:  Future Release
Component:  I18N                       |     Version:
 Severity:  minor                      |  Resolution:
 Keywords:  has-patch needs-test-info  |     Focuses:
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Comment (by SirLouen):

 cc @sukhendu2002

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Ticket URL: <https://core.trac.wordpress.org/ticket/47546#comment:9>
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