$ git clone -n https://gitee.com/src-opencloudos-rpms/protobuf-c.git /var/lib/mock/dist-oc9-build-124865-74476/root/chroot_tmpdir/scmroot/protobuf-c
Cloning into '/var/lib/mock/dist-oc9-build-124865-74476/root/chroot_tmpdir/scmroot/protobuf-c'...
$ git fetch origin 4b7ac817867d82f6bfebddc289d7aa2e56f8a245:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/protobuf-c
 * [new ref]         4b7ac817867d82f6bfebddc289d7aa2e56f8a245 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b7ac81 import protobuf-c-1.4.1-11.tl4