$ git clone -n https://gitee.com/src-opencloudos-rpms/python-wcag-contrast-ratio.git /var/lib/mock/dist-oc9-build-47979-14592/root/chroot_tmpdir/scmroot/python-wcag-contrast-ratio
Cloning into '/var/lib/mock/dist-oc9-build-47979-14592/root/chroot_tmpdir/scmroot/python-wcag-contrast-ratio'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-wcag-contrast-ratio
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 044f835 import python-wcag-contrast-ratio-0.9-4.tl4