SpineFile will now check to see if another identical atlas in the load queue is already loading the texture it needs and will no longer get locked waiting for a file that will never complete. This allows multiple skeleton JSONs to use the same atlas data. Fix phaserjs#5331

Author: photonstorm

plugins/spine/src/SpineFile.js

@@ -180,9 +180,12 @@ var SpineFile = new Class({
 
                     var image = new ImageFile(loader, key, textureURL, textureXhrSettings);
 
-                    this.addToMultiFile(image);
+                    if (!loader.keyExists(image))
+                    {
+                        this.addToMultiFile(image);
 
-                    loader.addFile(image);
+                        loader.addFile(image);
+                    }
                 }
 
                 //  Reset the loader settings