$ git clone -n https://src.fedoraproject.org/rpms/python-xxhash.git /var/lib/mock/f40-build-783660-133072/root/chroot_tmpdir/scmroot/python-xxhash
Cloning into '/var/lib/mock/f40-build-783660-133072/root/chroot_tmpdir/scmroot/python-xxhash'...
$ git fetch origin a3afacf4cb1d195494e1b104239e8ea7ab138bdf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-xxhash
 * [new ref]         a3afacf4cb1d195494e1b104239e8ea7ab138bdf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a3afacf Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild