$ git clone -n https://gitee.com/src-opencloudos-rpms/rng-tools.git /var/lib/mock/dist-oc9-build-44916-14591/root/chroot_tmpdir/scmroot/rng-tools
Cloning into '/var/lib/mock/dist-oc9-build-44916-14591/root/chroot_tmpdir/scmroot/rng-tools'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/rng-tools
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7b4685 import rng-tools-6.15-4.20220714git6a3a484d.tl4