$ git clone -n https://gitee.com/wenyuzifang/flex.git /var/lib/mock/dist-an23-build-469377-74027/root/chroot_tmpdir/scmroot/flex
Cloning into '/var/lib/mock/dist-an23-build-469377-74027/root/chroot_tmpdir/scmroot/flex'...
$ git fetch origin f9b83bf77dfe55e72b4482b49d53407fef56cb81:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/flex
 * [new ref]         f9b83bf77dfe55e72b4482b49d53407fef56cb81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9b83bf Update code from upstream