fix double encoded HTML entities re sf#1372630

docs/changelog/6.x.x.txt

@@ -7,6 +7,7 @@
  - fix [ 1377276 ] Calendar Pop up issue
  - fix [ 1376621 ] dateSubmitted not updated on posts
  - fix [ 1344111 ] promote/demote swap with non-"published" assets
+ - fix [ 1372630 ] Syndicated encode "&" also if belong to a HTML entity
  - removed server version tag appending.  Could re-add as an setting later.
    (along with the Style.pm header tag version number insertion).
  - fixed poll's editForm so an option only showed up at the proper time.

lib/WebGUI/Asset/Wobject/SyndicatedContent.pm

@@ -156,6 +156,9 @@ sub _strip_html {
                         $_[0] =~ s/\&lt;/</g;
                         $_[0] =~ s/\&gt;/>/g;
                         $_[0] = WebGUI::HTML::filter($_[0], 'all');
+			##Unencode double encoded entities.  This is usually done
+			##by passing XML::RSSLite an already encoded entity.
+			$_[0] =~ s/\&amp;(?=(#[0-9]+|#x[0-9a-fA-F]+|\w+);)/&/g;
                 }
         }