From e006056dd5814ec91471364b601e060e76ca4a1e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Max=20Ro=CC=88sch?= <github@elbebass.com>
Date: Thu, 10 Mar 2022 14:44:08 +0100
Subject: [PATCH] [BUGFIX] ParseFunc must return int instead of real boolean

---
 Classes/Utility/ParseFuncUtility.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Classes/Utility/ParseFuncUtility.php b/Classes/Utility/ParseFuncUtility.php
index 2e868d0d..692dd7d9 100644
--- a/Classes/Utility/ParseFuncUtility.php
+++ b/Classes/Utility/ParseFuncUtility.php
@@ -59,7 +59,7 @@ public function transformValue(string $processing, $value)
 
             case 'bool-negate':
             case 'negate-bool':
-                $value = !(bool)$value;
+                $value = (bool)$value ? 0 : 1;
                 break;
 
             default: