Android: creator becomes unusably slow after installing multiple apps

Creator slows down to the point where it takes several seconds to respond to a key press or mouse click. This happens when connected to an android device, and after installing 10-11 apps in a row. Disconnecting the device makes creator responsive again until the device is reconnected. Restarting creator also makes the problem go away.

There is an adb process using 10-15% CPU when the problem appears.

Detailed steps to reproduce:

1. connect android device
2. Start creator
3. open example/widgets/widgets/analogclock/analogclock.pro
4. configure it for Android
5. Run it, and exit
6. Repeat for the other widget examples in alphabetical order
7. Notice creator getting slower and slower