Transmit consistent IDs

Author: ElliottAYoung

app/models/asset_field_type.rb

@@ -122,15 +122,15 @@ def style_urls
     if existing_data.empty?
       (metadata[:styles].map { |key, value| [key, asset.url(key)] }).to_h
     else
-      existing_data[:asset][:style_urls]
+      existing_data.deep_symbolize_keys[:asset][:style_urls]
     end
   end
 
   def existing_metadata
     metadata.except!(:existing_data)
 
     unless existing_data.empty?
-      metadata[:path].gsub(":id", existing_data['asset_field_type_id']) if metadata[:path]
+      metadata[:path].gsub!(":id", existing_data['asset_field_type_id']) if metadata[:path]
     end
 
     metadata