Fix wrong assignment of name to Condition.

Author: mbp

src/FluentNHibernate/Conventions/Instances/ClassInstance.cs

@@ -106,7 +106,7 @@ public void ApplyFilter(string name, string condition)
         {
             var filterMapping = new FilterMapping();
             filterMapping.Set(x => x.Name, Layer.Conventions, name);
-            filterMapping.Set(x => x.Condition, Layer.Conventions, name);
+            filterMapping.Set(x => x.Condition, Layer.Conventions, condition);
             mapping.AddFilter(filterMapping);
         }