$ git clone -n https://gitee.com/src-opencloudos-rpms/patch.git /var/lib/mock/dist-oc9-build-129472-77845/root/chroot_tmpdir/scmroot/patch
Cloning into '/var/lib/mock/dist-oc9-build-129472-77845/root/chroot_tmpdir/scmroot/patch'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/patch
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50a3388 import patch-2.7.6-6.tl4