[wp-trac] [WordPress Trac] #35362: Empty `items_wrap` `wp_nav_menu` randomly breaks customizer

[WordPress Trac]

#35362: Empty `items_wrap` `wp_nav_menu` randomly breaks customizer
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 Reporter:  ojrask        |       Owner:  westonruter
     Type:  defect (bug)  |      Status:  accepted
 Priority:  normal        |   Milestone:  4.5
Component:  Customize     |     Version:  4.4
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |     Focuses:
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Comment (by westonruter):

 Discovered an issue: In Twenty Fifteen with the Social Links Menu assigned
 to no menu, assign a nav menu to that location and notice the preview not
 update to show the nav menu.

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Ticket URL: <https://core.trac.wordpress.org/ticket/35362#comment:10>
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