$ git clone -n https://src.fedoraproject.org/rpms/libmetal.git /var/lib/mock/f40-build-769611-125732/root/chroot_tmpdir/scmroot/libmetal
Cloning into '/var/lib/mock/f40-build-769611-125732/root/chroot_tmpdir/scmroot/libmetal'...
$ git fetch origin c90e79cbcd83313f2de4a442ec6f8d6ffcd63f4c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmetal
 * [new ref]         c90e79cbcd83313f2de4a442ec6f8d6ffcd63f4c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c90e79c Allow for minor soname