fix rating archived posts

docs/changelog/7.x.x.txt

@@ -28,6 +28,7 @@
    arbitrarily.
  - fix: Event Related Links are now proper collateral in their own table
    instead of a silly HTML area
+ - fix: rating archived posts causes error
 
 7.4.21
  - fix: Mails sent from WebGUI now wrap at 78 characters, as the SMTP

lib/WebGUI/Asset/Post/Thread.pm

@@ -818,8 +818,9 @@ sub updateThreadRating {
 
     my $calcRating  = 0; 
     my $postIds     = $self->getLineage(["descendants","self"], {
-        includeOnlyClasses => ["WebGUI::Asset::Post","WebGUI::Asset::Post::Thread"],
-    });  
+        includeOnlyClasses  => ["WebGUI::Asset::Post","WebGUI::Asset::Post::Thread"],
+        includeArchived     => 1,
+    });
 
     $calcRating += $session->db->quickScalar(
         "SELECT SUM(rating) FROM Post_rating WHERE assetId IN (".$session->db->quoteAndJoin($postIds).")"