Filtering issues on "related to" may ignore other filters (#14401).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@12058 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/issue_query.rb

@@ -467,10 +467,9 @@ class IssueQuery < Query
 
     if relation_options[:sym] == field && !options[:reverse]
       sqls = [sql, sql_for_relations(field, operator, value, :reverse => true)]
-      sqls.join(["!", "!*", "!p"].include?(operator) ? " AND " : " OR ")
-    else
-      sql
+      sql = sqls.join(["!", "!*", "!p"].include?(operator) ? " AND " : " OR ")
     end
+    "(#{sql})"
   end
 
   IssueRelation::TYPES.keys.each do |relation_type|