From 1ac5af1d8b4d1b4c96973cbc1a0900ce28ed2535 Mon Sep 17 00:00:00 2001
From: Simon Podlipsky <simon@podlipsky.net>
Date: Fri, 12 Jul 2019 21:01:10 +0300
Subject: [PATCH] Fix internal directives

---
 src/Type/Definition/Directive.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Type/Definition/Directive.php b/src/Type/Definition/Directive.php
index 3f71e61..75bc034 100644
--- a/src/Type/Definition/Directive.php
+++ b/src/Type/Definition/Directive.php
@@ -20,8 +20,8 @@ class Directive
     public const DEPRECATED_NAME      = 'deprecated';
     public const REASON_ARGUMENT_NAME = 'reason';
 
-    /** @var Directive[] */
-    public static $internalDirectives = [];
+    /** @var Directive[]|null */
+    public static $internalDirectives;
 
     // Schema Definitions