Fixed: queries with multiple custom fields return no result.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@668 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/fixtures/queries.yml

@@ -0,0 +1,22 @@
+--- 
+queries_001: 
+  name: Multiple custom fields query
+  project_id: 1
+  filters: |
+    --- 
+    cf_1: 
+      :values: 
+      - MySQL
+      :operator: "="
+    status_id: 
+      :values: 
+      - "1"
+      :operator: o
+    cf_2: 
+      :values: 
+      - "125"
+      :operator: "="
+
+  id: 1
+  is_public: true
+  user_id: 1