$ git clone -n https://gitee.com/tomcruiseqi/protobuf.git /var/lib/mock/dist-an23.3-build-461710-73778/root/chroot_tmpdir/scmroot/protobuf
Cloning into '/var/lib/mock/dist-an23.3-build-461710-73778/root/chroot_tmpdir/scmroot/protobuf'...
$ git fetch origin e9e4a329985f111dac37b7abcc081d95239abfbb:KOJI_FETCH_HEAD
From https://gitee.com/tomcruiseqi/protobuf
 * [new ref]         e9e4a329985f111dac37b7abcc081d95239abfbb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e9e4a32 Update to 31.1