$ git clone -n https://src.fedoraproject.org/rpms/python-multicodec.git /var/lib/mock/f45-build-31593-654/root/chroot_tmpdir/scmroot/python-multicodec
Cloning into '/var/lib/mock/f45-build-31593-654/root/chroot_tmpdir/scmroot/python-multicodec'...
$ git fetch origin d9b3f79bfdb475ac496d09c8b0aaa09a0a74f407:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-multicodec
 * [new ref]         d9b3f79bfdb475ac496d09c8b0aaa09a0a74f407 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d9b3f79 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild