Comment # 25 on bug 1184399 from Oliver Kurz

I tested myself within `podman run --pull=always --rm -it
registry.opensuse.org/opensuse/leap:15.2` by installing the according packages
and running `zypper in htop` in one shell, waiting at the "y/n/���������" prompt and I
did not confirm that selection. Then in another shell I ran `time env
ZYPP_LOCK_TIMEOUT=-1 /usr/bin/zypper -n purge-kernels`, waited two minutes (way
past the original 30s timeout), then confirmed the prompt in the first shell,
ending the interactive zypper process. In the second shell the "purge-kernels"
call quickly continued and succeeded, real time overall 2m1s. So I consider
this bug verification successful.