Assert valid timezone in date time fallback output transformer (#378)

* Assert valid timezone in date time fallback output transformer

Author: solverat

UPGRADE.md

@@ -1,5 +1,8 @@
 # Upgrade Notes
 
+## Version 4.3.2
+- **[BUGFIX]**: Assert valid timezone in date time fallback output transformer
+
 ## Version 4.3.1
 - **[BUGFIX]**: Fix field collection assignment [#375](https://github.com/dachcom-digital/pimcore-formbuilder/issues/375)
 

src/FormBuilderBundle/Transformer/Output/FallbackTransformer.php

@@ -114,7 +114,7 @@ protected function parseDefaultDateField(\DateTime $value, $fieldType, ?string $
             $locale,
             $formatValues[$dateFormat],
             $formatValues[$timeFormat],
-            \IntlTimeZone::createTimeZone($value->getTimezone()->getName())->getID(),
+            $value->getTimezone(),
             \IntlDateFormatter::GREGORIAN, // @todo: allow different formatter types (\IntlDateFormatter::TRADITIONAL)?
             null
         );