$ git clone -n https://gitee.com/opencloudos-stream/umockdev.git /var/lib/mock/dist-ocs23-base-build-308700-31736/root/chroot_tmpdir/scmroot/umockdev
Cloning into '/var/lib/mock/dist-ocs23-base-build-308700-31736/root/chroot_tmpdir/scmroot/umockdev'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/umockdev
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 28f0629 !2 Remove -Werror=unused-variable to build with meson 1.4 Merge pull request !2 from rockerzhu/master