[Bugs] #3616 Measure UNSP: Measure locks up if you click between microphone and sensor quickly

[Sugar Labs Bugs]

#3616: Measure locks up if you click between microphone and sensor quickly
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    Reporter:  carrott                    |          Owner:  walter                     
        Type:  defect                     |         Status:  new                        
    Priority:  Unspecified by Maintainer  |      Milestone:  Unspecified by Release Team
   Component:  Measure                    |        Version:  Unspecified                
    Severity:  Unspecified                |       Keywords:                             
Distribution:  Unspecified                |   Status_field:  Unconfirmed                
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 Start Measure[[BR]]
 Click sensor (Ohm over a squiggle)[[BR]]
 Quickly click the Micropohone[[BR]]
 Repeat until measure locks up[[BR]]

 This happens quite easily on XO-1.75, today it locked after only two
 clicks. It also happens on XO-1.5 but seems to take longer.

 See attached for GDB backtrace and logs.

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Ticket URL: <http://bugs.sugarlabs.org/ticket/3616>
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