$ git clone -n https://gitee.com/renping000/zchunk.git /var/lib/mock/dist-an7_9-updates-build-188334-60696/root/chroot_tmpdir/scmroot/zchunk
Cloning into '/var/lib/mock/dist-an7_9-updates-build-188334-60696/root/chroot_tmpdir/scmroot/zchunk'...
$ git fetch origin f0ab6f14443e5ed2861150297d6a5e67d7e77977:KOJI_FETCH_HEAD
From https://gitee.com/renping000/zchunk
 * [new ref]         f0ab6f14443e5ed2861150297d6a5e67d7e77977 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f0ab6f1 optimise spec file & add doc package