[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:  trunk
 Severity:  normal                   |  Resolution:
 Keywords:  needs-testing has-patch  |     Focuses:  javascript
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Comment (by adamsilverstein):

 Initial testing, some console errors after upgrading, we may need to
 upgrade underscore as well.

 * In customizer and media library grid view, I see

 `underscore.js Uncaught TypeError: Cannot use 'in' operator to search for
 'model' in undefined(anonymous function)`

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Ticket URL: <https://core.trac.wordpress.org/ticket/34350#comment:4>
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