Confirming fixed in Debian 10.5 point release: Bug is reproducible with kernel 4.19.0-9 running, not reproducible with 4.19.0-10 running. Tested via xdg-screensaver lock.
Confirming fixed in Debian 10.5 point release: Bug is reproducible with kernel 4.19.0-9 running, not reproducible with 4.19.0-10 running. Tested via xdg-screensaver lock.