Fix wrong specification which should apply to Condition.

Author: mbp

src/FluentNHibernate.Specs/Conventions/ApplyFilterSpecs.cs

@@ -26,7 +26,7 @@ public class when_applying_a_filter_to_an_entity_using_conventions
             mapping.Filters.Single().Name.ShouldEqual(FilterClassConvention.FilterName);
 
         It should_set_the_condition_of_the_added_filter_correctly = () =>
-            mapping.Filters.Single().Name.ShouldEqual(FilterClassConvention.FilterName);
+            mapping.Filters.Single().Condition.ShouldEqual(FilterClassConvention.FilterCondition);
 
         static FluentNHibernate.PersistenceModel model;
         static ClassMapping mapping;