[wp-trac] [WordPress Trac] #33494: Empty panels are revealed after a preview pane refresh

[WordPress Trac]

#33494: Empty panels are revealed after a preview pane refresh
------------------------------+-----------------------------
 Reporter:  coreymckrill4ttf  |      Owner:
     Type:  defect (bug)      |     Status:  new
 Priority:  normal            |  Milestone:  Awaiting Review
Component:  Customize         |    Version:  4.3
 Severity:  normal            |   Keywords:
  Focuses:                    |
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 Registered panels that don't have any sections in them are hidden.
 However, after updating a theme option that triggers a full preview pane
 refresh, those panels appear in the list. Clicking on them reveals that
 they are empty.

 Tested in Twenty Fifteen by adding this code to the top of the
 `twentyfifteen_customize_register` function:


 {{{
 $wp_customize->add_panel( 'testheader', array( 'title' => 'Header' ) );
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/33494>
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