[Interest] QML Android: keyboard is never shown after "hot" restart

[Alexander Dyagilev]

Hello,

In my QML application I need to perform a hot restart in some cases.

For this, I destroy everything, including QML engine and QApplication. 
And then I create all of them again.

All is working fine except that the keyboard does not appear on text 
inputs anymore.

Is this a bug? Is there any workaround? I use Qt 5.12.12.