[Bugs] #1060 UNSP: Intermittent Metacity layering issues

[SugarLabs Bugs]

#1060: Intermittent Metacity layering issues
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    Reporter:  garycmartin                |          Owner:  tomeu                      
        Type:  defect                     |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  sugar                      |        Version:  0.85.x                     
    Severity:  Major                      |       Keywords:                             
Distribution:  Unspecified                |   Status_field:  Needinfo                   
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 Opening a ticket to track Metacity layering issues. The frame, a number of
 frame menus, and the object chooser are getting intermittently clobbered.
 I'm still trying to find a reliable series reproducible steps to trigger:

 - Frame pop-up menus go behind Activity windows. In 'desktop' layer views
 (neighbourhood/group/home) the frame menus appear fine, but switching back
 to an Activity the menus are inaccessible again.

 - The entire frame fails to appear in all views (need to reboot after this
 one, perhaps not a layering bug?)

 - Object Chooser dialogue appears behind the Activity window that
 requested it (seen this a number of times in Memorize when trying to load
 a game).

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Ticket URL: <http://dev.sugarlabs.org/ticket/1060>
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