qgis - Saving a gml layer does not change coordinates

I am trying to export a gml layer to geojson with lat/lng as the preferred coordinate system. So what I did was a 'save as' on the layer with selected CRS: 'IGNF: WGS84G'.

Now I was hoping it converted the coordinates of the GML but it did not.

Part of GML data:

    

        
            264124.695 566223.95
        
    

Part of converted JSON data:

"geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ 264124.695, 566223.95 ] ] ] ] }

As you can see the coordinates remain the same. I tried other formats in order to test if something is converted but not. I am not an expert on GIS transformations so probably I did something wrong.

Environment: Windows 2012 Standard running inside VMWare Fusion QGIS version: 2.0.1 - Dafour 64 Bit

A screenshot of my actions: