Can't properly re-enable breakpoint in QML file

1. Create a new Qt Quick Application project.
2. Place a breakpoint in the MouseArea's onClicked handler.
3. Debug this application.
4. Click onto the background of the app's window.
   Execution stops at the breakpoint.
5. Continue debugging.
6. Disable the breakpoint.
7. Enable the breakpoint.
   It will keep its hourglass icon.
8. Click onto the background of the app's window.
   Execution does not stop at the breakpoint.

After enabling them, breakpoints should work again.