$ git clone -n https://gitee.com/opencloudos-stream/oxygen-icon-theme.git /var/lib/mock/dist-oc9-epol-build-105866-66656/root/chroot_tmpdir/scmroot/oxygen-icon-theme
Cloning into '/var/lib/mock/dist-oc9-epol-build-105866-66656/root/chroot_tmpdir/scmroot/oxygen-icon-theme'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/oxygen-icon-theme
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 702c6c5 update