$ git clone -n https://gitee.com/opencloudos-stream/mlir.git /var/lib/mock/dist-oc9-epol-build-150463-79727/root/chroot_tmpdir/scmroot/mlir
Cloning into '/var/lib/mock/dist-oc9-epol-build-150463-79727/root/chroot_tmpdir/scmroot/mlir'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/mlir
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f53bc8f !6 Rebuilt for loongarch64 Merge pull request !6 from brucezhang/master