Ignore zoom property because the zoom level is changed by fitBounds method.

Author: wf9a5m75

src/ios/GoogleMaps/Map.m

@@ -433,7 +433,7 @@ - (void)setOptions:(CDVInvokedUrlCommand *)command {
 
         camera = [GMSCameraPosition cameraWithLatitude:center.latitude
                                             longitude:center.longitude
-                                            zoom:[[cameraOpts valueForKey:@"zoom"] floatValue]
+                                            zoom:self.mapCtrl.map.camera.zoom
                                             bearing:[[cameraOpts objectForKey:@"bearing"] doubleValue]
                                             viewingAngle:[[cameraOpts objectForKey:@"tilt"] doubleValue]];