[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:
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Customize          |     Version:  4.4
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
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Comment (by ojrask):

 Hey,

 So sorry, I misunderstood the issue details from a team mate. Yes, the
 container is set to `false` and `items_wrap` contains only `%3$s`.

 The menu began working normally after the default `items_wrap` was used
 and `container` was still `false`. Other menu args are `fallback_cb =>
 false` and `theme_location => foobar`.

 It seems that the issue is the with the "fast refresh" system as you
 mentioned.

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Ticket URL: <https://core.trac.wordpress.org/ticket/35362#comment:2>
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