[wp-trac] [WordPress Trac] #42603: Widgets Warning after activating theme and on dashboard widgets page

[WordPress Trac]

#42603: Widgets Warning after activating theme and on dashboard widgets page
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 Reporter:  ionvv         |       Owner:  obenland
     Type:  defect (bug)  |      Status:  closed
 Priority:  normal        |   Milestone:  4.9.2
Component:  Widgets       |     Version:  4.9
 Severity:  normal        |  Resolution:  fixed
 Keywords:  has-patch     |     Focuses:  administration
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Comment (by obenland):

 In [changeset:"42363"]:
 {{{
 #!CommitTicketReference repository="" revision="42363"
 Widgets: Don't try mapping empty sidebars.

 Fixes a bug where the mapping logic would try mapping empty sidebars,
 resulting in PHP warnings.

 Props ionvv, chetan200891 for initial patch.
 See #42603.

 Merges [42362] to the 4.9 branch.
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/42603#comment:11>
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