"Start" button in analyze toolbar is not enabled/disabled when needed

To reproduce:
1) Create a new Qt Quick Application project
2) Switch to Analyze mode - the "Start" button is disabled (should be enabled)
3) As a workaround choose "Valgrind Analyze Memory" from combobox in toolbar, and then choose back "QML Profiler" - the "Start" button gets enabled
4) Close the project. The "Start" button is still enabled (should be disabled).