$ git clone -n https://src.fedoraproject.org/rpms/python-xml2rfc.git /var/lib/mock/f40-build-2319938-58413/root/chroot_tmpdir/scmroot/python-xml2rfc
Cloning into '/var/lib/mock/f40-build-2319938-58413/root/chroot_tmpdir/scmroot/python-xml2rfc'...
$ git fetch origin 651a1734fe4884ee03cd6b31607b8f8c9672a6ca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-xml2rfc
 * [new ref]         651a1734fe4884ee03cd6b31607b8f8c9672a6ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 651a173 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild