$ git clone -n https://gitee.com/opencloudos-stream/libgphoto2.git /var/lib/mock/dist-ocs23-build-285451-27642/root/chroot_tmpdir/scmroot/libgphoto2
Cloning into '/var/lib/mock/dist-ocs23-build-285451-27642/root/chroot_tmpdir/scmroot/libgphoto2'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libgphoto2
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5f540b4 !2 add systemd-devel buildrequire which contains pkgconf file.. Merge pull request !2 from cunshunxia/master