Arrow keys press is double in some programs in Dos

This bug has been copied automatically from: https://bugs.launchpad.net/qemu/+bug/1873337
Reported by 'ruthan' on 2020-04-16 :

Hello,
im trying to use Qemu for Dos machines.

 But there is problem with some programs that arrow key press is double in
some problems. As advanced Filemanagers - Dos Navigator or File Wizard,
same Scandisk.

There is gif:
https://www.vogons.org/download/file.php?id=77141&mode=view

 Its blocking to use such problem, unless you use Numlock key for it, but
im used 25+ years to arrow keys and its bug.. I guess that it would mess
with some games too.