$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-URI.git /var/lib/mock/dist-oc9-build-130244-78119/root/chroot_tmpdir/scmroot/perl-URI
Cloning into '/var/lib/mock/dist-oc9-build-130244-78119/root/chroot_tmpdir/scmroot/perl-URI'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-URI
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d38ef0 import perl-URI-5.19-4.tl4