$ git clone -n https://src.fedoraproject.org/rpms/liblockfile.git /var/lib/mock/f45-build-16491-486/root/chroot_tmpdir/scmroot/liblockfile
Cloning into '/var/lib/mock/f45-build-16491-486/root/chroot_tmpdir/scmroot/liblockfile'...
$ git fetch origin 953030a4a1dd1ae170474a73c5afc02d3a7574c8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/liblockfile
 * [new ref]         953030a4a1dd1ae170474a73c5afc02d3a7574c8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 953030a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild