o Might fix #66 but might also introduce other problems

@@ -962,6 +962,7 @@
 
     [mapScrollView addObserver:self forKeyPath:@"contentOffset" options:NSKeyValueObservingOptionNew context:NULL];
     [mapScrollView setZoomScale:exp2f([self zoom]) animated:NO];
+
     [self setDecelerationMode:decelerationMode];
 
     _lastZoom = [self zoom];
@@ -1245,7 +1246,7 @@
     if (tileSource == newTileSource)
         return;
 
-    int previousTileSideLength = [tileSource tileSideLength];
+//    int previousTileSideLength = [tileSource tileSideLength];
     RMProjectedPoint centerPoint = [self centerProjectedPoint];
 
     [tileSource cancelAllDownloads];
@@ -1271,17 +1272,17 @@
     [self setMaxZoom:newTileSource.maxZoom];
     [self setZoom:[self zoom]]; // setZoom clamps zoom level to min/max limits
 
-    if (previousTileSideLength == 0 || previousTileSideLength == [tileSource tileSideLength])
-    {
-        // Reload the map with the new tilesource
-        tiledLayerView.layer.contents = nil;
-        [tiledLayerView.layer setNeedsDisplay];
-    }
-    else
-    {
+//    if (previousTileSideLength == 0 || previousTileSideLength == [tileSource tileSideLength])
+//    {
+//        // Reload the map with the new tilesource
+//        tiledLayerView.layer.contents = nil;
+//        [tiledLayerView.layer setNeedsDisplay];
+//    }
+//    else
+//    {
         // Recreate the map layer
         [self createMapView];
-    }
+//    }
 
     [self setCenterProjectedPoint:centerPoint animated:NO];
 }