Debugger stops working after browsing QMap object.

Debugger stops working after browsing QMap object in "Locals and Expressions" window. Output on console :
SOFT ASSERT: "state() == InferiorRunOk" in file /work/build/qtsdk/qt-creator/src/plugins/debugger/debuggerengine.cpp, line 1036
Debugger::Internal::GdbPlainEngine(0x4b81280, name = "GdbEngine") InferiorStopOk

• • • UNEXPECTED STATE TRANSITION: Debugger::Internal::GdbPlainEngine(0x4b81280, name = "GdbEngine") "State changed from InferiorStopOk(14) to InferiorStopRequested(13) [master]"
      SOFT ASSERT: "state() == EngineRunRequested" in file /work/build/qtsdk/qt-creator/src/plugins/debugger/gdb/gdbplainengine.cpp, line 94
      InferiorStopRequested
      SOFT ASSERT: "state() == EngineRunRequested" in file /work/build/qtsdk/qt-creator/src/plugins/debugger/debuggerengine.cpp, line 943
      Debugger::Internal::GdbPlainEngine(0x4b81280, name = "GdbEngine") InferiorStopRequested
    • UNEXPECTED STATE TRANSITION: Debugger::Internal::GdbPlainEngine(0x4b81280, name = "GdbEngine") "State changed from InferiorStopRequested(13) to InferiorRunOk(11) [master]"