Fix image scaling (#23641)

Summary:
An updated version of: #22009, this compares the correct image size.

[iOS] [Fixed] - Compare network image sizes correctly
Pull Request resolved: #23641

Differential Revision: D14210991

Pulled By: hramos

fbshipit-source-id: 079053ef4a8f0e62da6eead9afc8de9285b35966

Libraries/Image/RCTImageView.m

@@ -412,8 +412,8 @@ - (void)reactSetFrame:(CGRect)frame
       return;
     }
 
-    // Don't reload if the current image size is the maximum size of the image source
-    CGSize imageSourceSize = _imageSource.size;
+    // Don't reload if the current image size is the maximum size of either the pending image source or image source
+    CGSize imageSourceSize = (_imageSource ? _imageSource : _pendingImageSource).size;
     if (imageSize.width * imageScale == imageSourceSize.width * _imageSource.scale &&
         imageSize.height * imageScale == imageSourceSize.height * _imageSource.scale) {
       return;