[wp-trac] Re: [WordPress Trac] #9952: Unregistering default widgets is not backwards compatible

[WordPress Trac]

#9952: Unregistering default widgets is not backwards compatible
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 Reporter:  mtdewvirus    |       Owner:  azaozz 
     Type:  defect (bug)  |      Status:  new    
 Priority:  high          |   Milestone:  2.8    
Component:  Widgets       |     Version:  2.8    
 Severity:  normal        |    Keywords:  widgets
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Comment(by azaozz):

 We can either skip registering the new multi-widget when there's a
 registered widget with the same id or unregister the old style widget
 while registering the new one.

 Seems most of the widgets that replace a default widget use the same
 option when storing the settings (not compatible with the new multi-
 widgets) and may use directly some functions that were part of the default
 widgets before and don't exist now. So perhaps it's better to unregister
 single widgets that try to replace a default widget.

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Ticket URL: <http://core.trac.wordpress.org/ticket/9952#comment:5>
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