$ git clone -n https://gitee.com/wenyuzifang/python-cachetools.git /var/lib/mock/dist-an23-build-485569-74348/root/chroot_tmpdir/scmroot/python-cachetools
Cloning into '/var/lib/mock/dist-an23-build-485569-74348/root/chroot_tmpdir/scmroot/python-cachetools'...
$ git fetch origin b78feafa235ef8cfe595ad301a8c6dc3f584cb04:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/python-cachetools
 * [new ref]         b78feafa235ef8cfe595ad301a8c6dc3f584cb04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b78feaf Update code from upstream