$ git clone -n https://gitee.com/src-opencloudos-rpms/ncompress.git /var/lib/mock/dist-oc9-build-70871-47481/root/chroot_tmpdir/scmroot/ncompress
Cloning into '/var/lib/mock/dist-oc9-build-70871-47481/root/chroot_tmpdir/scmroot/ncompress'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ncompress
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7938ac4 import ncompress-5.0-1.tl4