$ git clone -n https://gitee.com/src-opencloudos-rpms/python-jinja2.git /var/lib/mock/dist-oc8-build-74146-49654/root/chroot_tmpdir/scmroot/python-jinja2
Cloning into '/var/lib/mock/dist-oc8-build-74146-49654/root/chroot_tmpdir/scmroot/python-jinja2'...
$ git fetch origin 9ad61e56a3c48276ce3cd9f497e0037b342e2447:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-jinja2
 * [new ref]         9ad61e56a3c48276ce3cd9f497e0037b342e2447 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ad61e5 import python-jinja2-2.10.1-4.tl3