$ git clone -n https://src.fedoraproject.org/rpms/lua-bitop.git /var/lib/mock/f45-build-17609-501/root/chroot_tmpdir/scmroot/lua-bitop
Cloning into '/var/lib/mock/f45-build-17609-501/root/chroot_tmpdir/scmroot/lua-bitop'...
$ git fetch origin 5ca8ba8657a707746e19a9a6b8eb50604b7d941c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lua-bitop
 * [new ref]         5ca8ba8657a707746e19a9a6b8eb50604b7d941c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5ca8ba8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild