[wp-trac] [WordPress Trac] #40010: Regression for #36749. Uploading an image into site_icon breaks customizer

[WordPress Trac]

#40010: Regression for #36749. Uploading an image into site_icon breaks customizer
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 Reporter:  aussieguy123  |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  General       |     Version:  trunk
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by westonruter):

 @aussieguy123 also, if you open up your console, what does
 `_wpCustomizeSettings.controls.site_icon.attachment` output? I'm expecting
 it to have an empty `sizes` property. But I want to know what the other
 properties are as well. Please attach the JSON.

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Ticket URL: <https://core.trac.wordpress.org/ticket/40010#comment:3>
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