$ git clone -n https://gitee.com/mgb01105731/zchunk.git /var/lib/mock/dist-an23-build-153531-58076/root/chroot_tmpdir/scmroot/zchunk
Cloning into '/var/lib/mock/dist-an23-build-153531-58076/root/chroot_tmpdir/scmroot/zchunk'...
$ git reset --hard origin/a23
HEAD is now at fb959e8 optimise spec file & add doc package