$ git clone -n https://gitee.com/src-opencloudos-rpms/perl-Parse-Yapp.git /var/lib/mock/dist-oc9-build-43797-14591/root/chroot_tmpdir/scmroot/perl-Parse-Yapp
Cloning into '/var/lib/mock/dist-oc9-build-43797-14591/root/chroot_tmpdir/scmroot/perl-Parse-Yapp'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/perl-Parse-Yapp
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5f08d2 import perl-Parse-Yapp-1.21-3.tl4