$ git clone -n https://gitee.com/src-opencloudos-rpms/bouncycastle.git /var/lib/mock/dist-oc9-build-63409-16463/root/chroot_tmpdir/scmroot/bouncycastle
Cloning into '/var/lib/mock/dist-oc9-build-63409-16463/root/chroot_tmpdir/scmroot/bouncycastle'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/bouncycastle
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b414fb1 import bouncycastle-1.70-3.tl4