[Bug 755713] Stacktrace.txt

[Apport retracing service]

** Attachment added: "Stacktrace.txt"
   https://bugs.launchpad.net/bugs/755713/+attachment/2016354/+files/Stacktrace.txt

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https://bugs.launchpad.net/bugs/755713

Title:
  plasma-desktop crashed with SIGSEGV in QMetaObject::activate()