$ git clone -n https://src.fedoraproject.org/rpms/plasma-welcome.git /var/lib/mock/f40-build-2372384-60406/root/chroot_tmpdir/scmroot/plasma-welcome
Cloning into '/var/lib/mock/f40-build-2372384-60406/root/chroot_tmpdir/scmroot/plasma-welcome'...
$ git fetch origin 0b9c3719971e459398c52b3832fe2cee97d4e67a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-welcome
 * [new ref]         0b9c3719971e459398c52b3832fe2cee97d4e67a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0b9c371 5.93.0