[wp-trac] [WordPress Trac] #39221: Customize: Prevent setting previewing logic when settings will be saved

[WordPress Trac]

#39221: Customize: Prevent setting previewing logic when settings will be saved
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 Reporter:  westonruter                      |       Owner:  westonruter
     Type:  defect (bug)                     |      Status:  closed
 Priority:  normal                           |   Milestone:  4.9
Component:  Customize                        |     Version:  4.7
 Severity:  normal                           |  Resolution:  fixed
 Keywords:  has-patch has-unit-tests commit  |     Focuses:
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Comment (by westonruter):

 In [changeset:"42139"]:
 {{{
 #!CommitTicketReference repository="" revision="42139"
 Customize: Fix reliability of just-in-time publishing for changesets that
 miss their schedule when visiting `customize.php`.

 When just doing `wp_publish_post()` for the changeset from
 `customize.php`, any option-based settings will fail to get saved because
 `WP_Customize_Manager` would have already been loaded with
 `settings_previewed`, resulting in `update_option()` calls being short-
 circuited. So an admin-ajax request to `customize_save` is used to work
 around this.

 Props westonruter, jeremyfelt, dlh for testing, LittleBigThing for
 testing.
 Amends [41626].
 See #28721, #39221.
 Fixes #42457 for 4.9.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/39221#comment:19>
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