BTLE on Android: Disconnect does not disconnect

Running
https://codereview.qt-project.org/c/qt/qtconnectivity/+/347091
on Linux

and
https://codereview.qt-project.org/c/qt/qtconnectivity/+/347342
on Android

The test "readDuringServiceDiscovery" fails because it sees state left from readWriteLargeCharacteristic.

readWriteLargeCharacteristic should disconnect at the end. On disconnect, the BluetoothTestDevice should reset itself and again have the value 0x0b00000... in its largeCharacteristic. But readDuringServiceDiscovery sees the value 0x01020304.... which is the value that is written into the characteristic by readWriteLargeCharacteristic.