Merging 7.3.21 changes.

docs/changelog/7.x.x.txt

@@ -81,6 +81,7 @@
     http://www.webgui.org/bugs/tracker/sqlform-says-databaselink-does-not-have-enough-privileges
  - fix: List pending Transactions (perlDreamer Consulting, LLC)
     http://www.webgui.org/bugs/tracker/list-pending-transactions
+ - fix: syndicated content fails if feeds have items with single and multiple category entries
 
 7.3.20
  - Added beta label to the beta components in the system, so people can more

lib/WebGUI/Asset/Wobject/SyndicatedContent.pm

@@ -326,6 +326,8 @@ sub _normalize_items {
                 # IE doesn't recognize '
                 $item->{title} =~ s/'/\'/g;
                 $item->{description} =~ s/'/\'/g;
+                $item->{category} = [$item->{category}]
+                    if ref $item->{category} ne 'ARRAY';  
 		appendChoppedDescriptionTemplateVars($item);
         }
 }