$ git clone -n https://src.fedoraproject.org/rpms/kscreenlocker.git /var/lib/mock/f40-build-1221600-22751/root/chroot_tmpdir/scmroot/kscreenlocker
Cloning into '/var/lib/mock/f40-build-1221600-22751/root/chroot_tmpdir/scmroot/kscreenlocker'...
$ git fetch origin 9fdd9d3f55278431d2a634bcaeeddf9c58de10fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kscreenlocker
 * [new ref]         9fdd9d3f55278431d2a634bcaeeddf9c58de10fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9fdd9d3 feat: 6.1.1