$ git clone -n https://src.fedoraproject.org/rpms/python-astropy.git /var/lib/mock/f38-build-side-42-init-devel-647026-26424/root/chroot_tmpdir/scmroot/python-astropy
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-647026-26424/root/chroot_tmpdir/scmroot/python-astropy'...
$ git fetch origin 7c6224461191613d53ad5db91d370af411f961ef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-astropy
 * [new ref]         7c6224461191613d53ad5db91d370af411f961ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c62244 new version