$ git clone -n https://src.fedoraproject.org/rpms/python-gemfileparser2.git /var/lib/mock/f45-build-30828-647/root/chroot_tmpdir/scmroot/python-gemfileparser2
Cloning into '/var/lib/mock/f45-build-30828-647/root/chroot_tmpdir/scmroot/python-gemfileparser2'...
$ git fetch origin af8f7e384109bff6420d7a2f2ebf1960552a0e3e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-gemfileparser2
 * [new ref]         af8f7e384109bff6420d7a2f2ebf1960552a0e3e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af8f7e3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild