From 11df3a82482ca33e8c3f22d18384ea691335cc0c Mon Sep 17 00:00:00 2001
From: David Vogt <vogt@punkt.de>
Date: Fri, 22 Apr 2022 16:05:34 +0200
Subject: [PATCH] TASK: on formRuntime initialization do not overwrite
 formState values for non existend request arguments

---
 Classes/Core/Runtime/FormRuntime.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Classes/Core/Runtime/FormRuntime.php b/Classes/Core/Runtime/FormRuntime.php
index 543e706..4543231 100644
--- a/Classes/Core/Runtime/FormRuntime.php
+++ b/Classes/Core/Runtime/FormRuntime.php
@@ -283,6 +283,11 @@ protected function mapAndValidatePage(Page $page)
         $pageFormValues = [];
         foreach ($page->getElementsRecursively() as $element) {
             $value = Arrays::getValueByPath($requestArguments, $element->getIdentifier());
+
+            if ($value === null) {
+                continue;
+            }
+
             $element->onSubmit($this, $value);
 
             $pageFormValues[$element->getIdentifier()] = $value;