$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-File-ReadBackwards.git /var/lib/mock/dist-oc9-build-47529-14592/root/chroot_tmpdir/scmroot/perl-File-ReadBackwards
Cloning into '/var/lib/mock/dist-oc9-build-47529-14592/root/chroot_tmpdir/scmroot/perl-File-ReadBackwards'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-File-ReadBackwards
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8cba075 import perl-File-ReadBackwards-1.06-3.tl4