$ git clone -n https://gitee.com/opencloudos-stream/CImg.git /var/lib/mock/dist-ocs23-epol9-build-228943-17627/root/chroot_tmpdir/scmroot/CImg
Cloning into '/var/lib/mock/dist-ocs23-epol9-build-228943-17627/root/chroot_tmpdir/scmroot/CImg'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/CImg
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6370b64 update