$ git clone -n https://gitee.com/src-opencloudos-rpms/python-stestr.git /var/lib/mock/dist-oc9-build-49388-14595/root/chroot_tmpdir/scmroot/python-stestr
Cloning into '/var/lib/mock/dist-oc9-build-49388-14595/root/chroot_tmpdir/scmroot/python-stestr'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-stestr
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0ad34d6 import python-stestr-4.0.1-3.tl4