$ git clone -n https://gitee.com/src-opencloudos-rpms/dos2unix.git /var/lib/mock/dist-oc9-build-59580-16463/root/chroot_tmpdir/scmroot/dos2unix
Cloning into '/var/lib/mock/dist-oc9-build-59580-16463/root/chroot_tmpdir/scmroot/dos2unix'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/dos2unix
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aefe041 import dos2unix-7.5.0-2.tl4