$ git clone -n https://src.fedoraproject.org/rpms/kf5-karchive.git /var/lib/mock/f40-build-786822-134632/root/chroot_tmpdir/scmroot/kf5-karchive
Cloning into '/var/lib/mock/f40-build-786822-134632/root/chroot_tmpdir/scmroot/kf5-karchive'...
$ git fetch origin e988beacb5bde2dffe7e1989b63f2788b958ec4b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-karchive
 * [new ref]         e988beacb5bde2dffe7e1989b63f2788b958ec4b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e988bea 5.115.0