$ git clone -n https://src.fedoraproject.org/rpms/psacct.git /var/lib/mock/f45-build-28984-634/root/chroot_tmpdir/scmroot/psacct
Cloning into '/var/lib/mock/f45-build-28984-634/root/chroot_tmpdir/scmroot/psacct'...
$ git fetch origin c2fef441709265af15e29d3afdcf70b6729e5183:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/psacct
 * [new ref]         c2fef441709265af15e29d3afdcf70b6729e5183 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c2fef44 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild