Set the max zoom to 20 to avoid over-zooming in Google maps.

farm_area.default_openlayers_components.inc

@@ -43,7 +43,7 @@ function farm_area_default_openlayers_components() {
     ),
     'zoom' => 'auto',
     'enableAnimations' => 1,
-    'max_zoom' => '0',
+    'max_zoom' => 20,
     'process_once' => 1,
   );
   $export['farm_area_component_areas_zoom_to_source'] = $ol_component;

farm_area.default_openlayers_maps.inc

@@ -28,9 +28,7 @@ function farm_area_default_openlayers_maps() {
       'rotation' => 0,
       'zoom' => 4,
       'minZoom' => 0,
-      'maxZoom' => 0,
-      'limit_extent' => 0,
-      'extent' => '-194.765625, -57.32652122521709, 21681210.199033674, 7827151.696402048',
+      'maxZoom' => 20,
     ),
     'renderer' => 'canvas',
     'layers' => array(