[Bugs] #3074 LOW: Language screen in Control Panel hangs on load after setting lang from cmd line

[Sugar Labs Bugs]

#3074: Language screen in Control Panel hangs on load after setting lang from cmd
line
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    Reporter:  sj           |          Owner:                             
        Type:  defect       |         Status:  new                        
    Priority:  Low          |      Milestone:  Unspecified by Release Team
   Component:  untriaged    |        Version:  Unspecified                
    Severity:  Critical     |       Keywords:                             
Distribution:  Unspecified  |   Status_field:  Unconfirmed                
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 Sugar 11.2, build 852, on an XO-1.5

 I wanted to change my lang setting so I went into the Control Panel,
 opened the Language panel, saw the list of available languages, but didn't
 find it.

 I opened a Terminal in Sugar, and used sugar-control-panel to try setting
 the language manually.  The language I wanted still wasn't known, but to
 test s-c-p I set the language with it, to Spanish/Argentina and
 French/France, tried a dozen other languages (French, Thai, Hebrew/Israel,
 Estonian - only things from the old full list of languages), then set it
 back to English/USA.

 I tried sugar-control-panel -h languages to lists all available languages
 - it returned only "none".

 I returned to the visual Control Panel to view the list again - and
 encountered the bug.

 Clicking on "Language" caused the title to change to "Language" with the
 title tab shown as expected -- with the Cancel/OK buttons.  But nothing
 else renderd - I could still see the visual menu of the Sugar Control
 Panel -- and could click on other icons to load their panels.

 I restarted Sugar to see if this would fix the observed bug. Instead, it
 led to all activities all disappearing from the desktop(!!).  So there
 could be something more significant going on.

 I can still open my visual Control Panel and Journal -- and the Language
 panel bug is still there [the others all work normally].  I'll try to
 reproduce on a clean install.

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Ticket URL: <http://bugs.sugarlabs.org/ticket/3074>
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