Debugger misses cpp breakpoint on second run of a mixed debugging session

Steps to reproduce:

• create a Qt Quick Application (Qt Quick Controls 1.1)
• set a breakpoint inside the main.cpp and another one inside the main.qml (on the Qt.quit() statement)
• enable QML debugging (Project view, run settings)
• start debugging
  • cpp breakpoint gets hit, hit 'Continue'
  • QML app comes up, trigger the menu File->Exit on the inferior
  • qml breakpoint gets hit, hit 'Continue'
  • application and debugger finish
• start debugging again
  • cpp breakpoint won't get hit
  • QML app comes up, trigger the menu File->Exit on the inferior
  • qml breakpoint gets hit, hit 'Continue'
  • application and debugger finish

Expected behaviour:

• cpp breakpoint gets hit also the second (and additional) run(s)