[wp-trac] [WordPress Trac] #39210: switch_to_locale() unloads all plugin and theme translations

[WordPress Trac]

#39210: switch_to_locale() unloads all plugin and theme translations
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 Reporter:  gchtr                                |       Owner:  ocean90
     Type:  defect (bug)                         |      Status:  reopened
 Priority:  normal                               |   Milestone:  6.1
Component:  I18N                                 |     Version:  4.7
 Severity:  normal                               |  Resolution:
 Keywords:  has-unit-tests has-patch needs-dev-  |     Focuses:
  note                                           |
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Comment (by spacedmonkey):

 Forgive me, but I put together a very simple patch, that caches, if the
 file exists or not. See [https://github.com/WordPress/wordpress-
 develop/pull/3508 #3508]. This seems to fix much of the problem, as I am
 seeing page speed improve.

 If this is not the solution, then I would love to understand why not.
 Because I don't see a reason not to cache is_readable, it seems it is not
 a value that is going to change in a page request.

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Ticket URL: <https://core.trac.wordpress.org/ticket/39210#comment:77>
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