[wp-trac] [WordPress Trac] #34350: Update Backbone to 1.2.3

[WordPress Trac]

#34350: Update Backbone to 1.2.3
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 Reporter:  caseypatrickdriscoll  |       Owner:  adamsilverstein
     Type:  enhancement           |      Status:  assigned
 Priority:  normal                |   Milestone:  Future Release
Component:  External Libraries    |     Version:  4.4
 Severity:  normal                |  Resolution:
 Keywords:                        |     Focuses:  javascript
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Comment (by ericlewis):

 > Can you test this patch to see if it resolves the issues you were seeing
 in media? subviews should now get their ready events fired which should
 help!

 I can't reproduce the issue with your fix :)

 > I'm going to test a few more things: using the existing versions of
 bb/us with this change, and tracing what happens in the older versions:
 whats changed. I'm guessing Underscore has changed how its flatten works
 although nothing popped out at me when reviewing the change logs.

 This would be most excellent. We'll need to understand the breaking change
 for both core and for the community

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Ticket URL: <https://core.trac.wordpress.org/ticket/34350#comment:11>
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