[BRLTTY] BRLTTY moving the braille window without being asked to

[Sébastien Hinderer]

Hey Elias,

Thanks for the suggestion, it's a good idea.

I tried two different devices connected to the same laptop and the
behaviour can be observed with both of them.

The same devices, connected to another laptop, with an older BRLTTY, do
not trigger the problem.

Best wishes,

Sébastien.