Merge pull request #1 from vytautas-k/patch-1

Set values to be null instead false

src/DataDog/AuditBundle/EventSubscriber/AuditSubscriber.php

@@ -256,7 +256,9 @@ private function audit(EntityManager $em, array $data)
             } else {
                 $typ = Type::getType(Type::BIGINT); // relation
             }
-
+            if (in_array($name, ['source', 'target', 'blame']) && $data[$name] === false) {
+                $data[$name] = null;
+            }
             $this->auditInsertStmt->bindValue($idx++, $data[$name], $typ);
         }
         $this->auditInsertStmt->execute();