$ git clone -n https://gitee.com/opencloudos-stream/file.git /var/lib/mock/dist-ocs23-base-build-345946-38455/root/chroot_tmpdir/scmroot/file
Cloning into '/var/lib/mock/dist-ocs23-base-build-345946-38455/root/chroot_tmpdir/scmroot/file'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/file
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 51b1b71 !2 Do not provide or obsolete python3-magic Merge pull request !2 from jackxjchen/master