$ git clone -n https://gitee.com/wency_cn/libgphoto2.git /var/lib/mock/dist-an23-build-492281-74553/root/chroot_tmpdir/scmroot/libgphoto2
Cloning into '/var/lib/mock/dist-an23-build-492281-74553/root/chroot_tmpdir/scmroot/libgphoto2'...
$ git fetch origin fcb955a9451d3499eeedea782c51aae7fa68c911:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/libgphoto2
 * [new ref]         fcb955a9451d3499eeedea782c51aae7fa68c911 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fcb955a Update code from upstream