$ git clone -n https://gitee.com/src-opencloudos-rpms/log4j.git /var/lib/mock/dist-oc9-build-70668-47458/root/chroot_tmpdir/scmroot/log4j
Cloning into '/var/lib/mock/dist-oc9-build-70668-47458/root/chroot_tmpdir/scmroot/log4j'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/log4j
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8db1d80 import log4j-2.17.2-3.tl4