$ git clone -n https://gitee.com/src-opencloudos-rpms/python-yarl.git /var/lib/mock/dist-oc9-epol-build-54828-14768/root/chroot_tmpdir/scmroot/python-yarl
Cloning into '/var/lib/mock/dist-oc9-epol-build-54828-14768/root/chroot_tmpdir/scmroot/python-yarl'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-yarl
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3b7de9 import python-yarl-1.8.2-2.tl4