Fixing bug 108651. Don't call nsIDocument::ContentAppended() if nothing was appended (when inserting an empty document fragment). r=harishd@netscape.com, rs=vidur@netscape.com

content/base/src/nsGenericElement.cpp

@@ -2445,7 +2445,7 @@ nsGenericElement::doInsertBefore(nsIDOMNode* aNewChild,
       return res;
     }
 
-    if (!do_notify && mDocument) {
+    if (count && !do_notify && mDocument) {
       mDocument->ContentAppended(this, old_count);
     }