Using QtWidgets on Android, QDockWidgets misbehave badly when rearranging them.

Attempting to drag a floating widget around will make it jitter around the screen, teleporting around in a seemingly random pattern until it is let go. Sometimes this gets so crazy that the widget can no longer be released and gets attached to the finger or cursor forever, or sometimes even crashes the entire application, but this does not reproduce consistently.

Trying to dock a widget elsewhere sometimes causes partial repaints that miss part of the affected area. Unsure if this is related to the incorrect positioning. Could also be related to the repainting issues reported in QTBUG-139194 and QTBUG-139195.

The issues appear when using touch, a mouse or a stylus all the same.

I'll attach a video showing the issue on a Samsung S6 Lite running Android 13, but the issue seems to reproduce on any device.

The minimal application shown in the video is attached and also available here: https://github.com/askmeaboutlo0m/barebones-qt-app/