$ git clone -n https://src.fedoraproject.org/rpms/rubygem-xmlparser.git /var/lib/mock/f40-build-777963-129669/root/chroot_tmpdir/scmroot/rubygem-xmlparser
Cloning into '/var/lib/mock/f40-build-777963-129669/root/chroot_tmpdir/scmroot/rubygem-xmlparser'...
$ git fetch origin eeadd893431e94feb6424e72d35795f617d6960b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-xmlparser
 * [new ref]         eeadd893431e94feb6424e72d35795f617d6960b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eeadd89 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild