From 1b17192b0a976a16b3e3ea470cef776ab0c0b113 Mon Sep 17 00:00:00 2001
From: Baptiste Leduc <baptiste.leduc@gmail.com>
Date: Thu, 7 Feb 2019 13:40:54 +0100
Subject: [PATCH] escape function does not always take a string

---
 src/Symfony/Component/Workflow/Dumper/GraphvizDumper.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Symfony/Component/Workflow/Dumper/GraphvizDumper.php b/src/Symfony/Component/Workflow/Dumper/GraphvizDumper.php
index f8c0fa5457427..918c0c8335619 100644
--- a/src/Symfony/Component/Workflow/Dumper/GraphvizDumper.php
+++ b/src/Symfony/Component/Workflow/Dumper/GraphvizDumper.php
@@ -204,9 +204,9 @@ protected function dotize($id)
     /**
      * @internal
      */
-    protected function escape(string $string): string
+    protected function escape($value): string
     {
-        return addslashes($string);
+        return \is_bool($value) ? ($value ? '1' : '0') : \addslashes($value);
     }
 
     private function addAttributes(array $attributes): string