$ git clone -n https://gitee.com/ocs-upgrade/zchunk.git /var/lib/mock/dist-ocs23-build-284314-27513/root/chroot_tmpdir/scmroot/zchunk
Cloning into '/var/lib/mock/dist-ocs23-build-284314-27513/root/chroot_tmpdir/scmroot/zchunk'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/ocs-upgrade/zchunk
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 534123b Upgrade to version 1.5.1