$ git clone -n https://src.fedoraproject.org/rpms/python-xml2rfc.git /var/lib/mock/f45-build-33762-674/root/chroot_tmpdir/scmroot/python-xml2rfc
Cloning into '/var/lib/mock/f45-build-33762-674/root/chroot_tmpdir/scmroot/python-xml2rfc'...
$ git fetch origin c9a503121559997b363240fc270771b97210bd59:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-xml2rfc
 * [new ref]         c9a503121559997b363240fc270771b97210bd59 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c9a5031 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild