$ git clone -n https://src.fedoraproject.org/rpms/grantleetheme.git /var/lib/mock/f40-build-2431791-60644/root/chroot_tmpdir/scmroot/grantleetheme
Cloning into '/var/lib/mock/f40-build-2431791-60644/root/chroot_tmpdir/scmroot/grantleetheme'...
$ git fetch origin e540ff7da7c0e0122dfd676d384a9c72d6d50ebf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/grantleetheme
 * [new ref]         e540ff7da7c0e0122dfd676d384a9c72d6d50ebf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e540ff7 24.01.95