Revert incorrect update to test assertion

* This assertion was initially correct
* After some discussion we thought that it was wrong
* We now understand why it initially was correct (we missed that 'false AND null -> false')

tck/features/expressions/boolean/Boolean5.feature

@@ -159,7 +159,7 @@ Feature: Boolean5 - Interop of logical operations
       | false | false | false | true   |
     And no side effects
 
-  Scenario: [6] Conjunction is distributive over exclusive disjunction on null
+  Scenario: [6] Conjunction is not distributive over exclusive disjunction on null
     Given any graph
     When executing query:
       """
@@ -181,7 +181,7 @@ Feature: Boolean5 - Interop of logical operations
       | false | null  | true  | true   |
       | false | null  | false | true   |
       | false | null  | null  | true   |
-      | null  | true  | true  | true   |
+      | null  | true  | true  | false  |
       | null  | true  | false | true   |
       | null  | true  | null  | true   |
       | null  | false | true  | true   |