$ git clone -n https://src.fedoraproject.org/rpms/python-giacpy.git /var/lib/mock/f40-build-731375-103859/root/chroot_tmpdir/scmroot/python-giacpy
Cloning into '/var/lib/mock/f40-build-731375-103859/root/chroot_tmpdir/scmroot/python-giacpy'...
$ git fetch origin a354a25aad4d6c93a8bb0fcda145aaf527fbc3ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-giacpy
 * [new ref]         a354a25aad4d6c93a8bb0fcda145aaf527fbc3ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a354a25 Release 0.7.3 (rhbz#2239905)