Comment 2 for bug 1233550

My understanding of this issue from tmoenicke:
- setVisible(false) gets called on the osk window to hide it and setVisible(true) called to show it
- after multiple setVisible(false) calls then subsequent calls to setVisible(true) to not make the window appear anymore
- this only happens on MIR, worked fine with SF
- maliit-server is not crashing, it is still running when the problem occurs