[wp-trac] [WordPress Trac] #26511: Introduce a locale-switching function

[WordPress Trac]

#26511: Introduce a locale-switching function
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 Reporter:  johnbillion                          |       Owner:  ocean90
     Type:  feature request                      |      Status:  reviewing
 Priority:  normal                               |   Milestone:  4.7
Component:  I18N                                 |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch dev-feedback has-unit-     |     Focuses:
  tests                                          |
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Comment (by swissspidy):

 @pbearne Yes, switching to non-existing locales should be avoided. See
 also suggestions in #29783.

 I'll try to wrap my head around the patch & tests now.

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Ticket URL: <https://core.trac.wordpress.org/ticket/26511#comment:34>
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