$ git clone -n https://gitee.com/opencloudos-stream/llvm.git /var/lib/mock/dist-rebuild-after-rpm-check-build-173481-10884/root/chroot_tmpdir/scmroot/llvm
Cloning into '/var/lib/mock/dist-rebuild-after-rpm-check-build-173481-10884/root/chroot_tmpdir/scmroot/llvm'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/llvm
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a6ee225 !6 Fix the issue for patching files Merge pull request !6 from Ami-zhang/master