$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-Devel-Size.git /var/lib/mock/dist-oc9-build-71127-47517/root/chroot_tmpdir/scmroot/perl-Devel-Size
Cloning into '/var/lib/mock/dist-oc9-build-71127-47517/root/chroot_tmpdir/scmroot/perl-Devel-Size'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-Devel-Size
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1989900 import perl-Devel-Size-0.83-5.tl4