$ git clone -n https://src.fedoraproject.org/rpms/python-schema.git /var/lib/mock/f45-build-32876-664/root/chroot_tmpdir/scmroot/python-schema
Cloning into '/var/lib/mock/f45-build-32876-664/root/chroot_tmpdir/scmroot/python-schema'...
$ git fetch origin a9882c108ab41e33d58e13b0aa77312509717c27:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-schema
 * [new ref]         a9882c108ab41e33d58e13b0aa77312509717c27 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9882c1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild