$ git clone -n https://gitee.com/wency_cn/python-cachetools.git /var/lib/mock/dist-an23-build-492836-74562/root/chroot_tmpdir/scmroot/python-cachetools
Cloning into '/var/lib/mock/dist-an23-build-492836-74562/root/chroot_tmpdir/scmroot/python-cachetools'...
$ git fetch origin f800d7ef3b6da0b046ef124f2a7575cb350235b2:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/python-cachetools
 * [new ref]         f800d7ef3b6da0b046ef124f2a7575cb350235b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f800d7e Update code from upstream