$ git clone -n https://src.fedoraproject.org/rpms/kscreenlocker.git /var/lib/mock/f41-build-side-1-3131069-39607/root/chroot_tmpdir/scmroot/kscreenlocker
Cloning into '/var/lib/mock/f41-build-side-1-3131069-39607/root/chroot_tmpdir/scmroot/kscreenlocker'...
$ git fetch origin 6d0edef23b8e53bca5e646ed15dec0f4175b2797:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kscreenlocker
 * [new ref]         6d0edef23b8e53bca5e646ed15dec0f4175b2797 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d0edef Merge branch 'rawhide' into f41