$ git clone -n https://gitee.com/wency_cn/libgphoto2.git /var/lib/mock/dist-an23-build-502437-74802/root/chroot_tmpdir/scmroot/libgphoto2
Cloning into '/var/lib/mock/dist-an23-build-502437-74802/root/chroot_tmpdir/scmroot/libgphoto2'...
$ git fetch origin 21643582baf1c5fb1dd958b1653d1a74a927f9df:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/libgphoto2
 * [new ref]         21643582baf1c5fb1dd958b1653d1a74a927f9df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2164358 Update code from upstream