Remove some implicit bool type juggling

Author: Girgias

Tests/Extension/SecurityExtensionTest.php

@@ -91,8 +91,8 @@ public static function provideObjectFieldAclCases()
         return [
             [null, null, null],
             ['object', null, 'object'],
-            ['object', false, new FieldVote('object', false)],
-            ['object', 0, new FieldVote('object', 0)],
+            ['object', '', new FieldVote('object', false)],
+            ['object', '0', new FieldVote('object', 0)],
             ['object', '', new FieldVote('object', '')],
             ['object', 'field', new FieldVote('object', 'field')],
         ];