do not convert empty datetimes to datetime

Author: koertho

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.2.13] - 2026-06-30
+- Fixed: creating invalid datetime for empty datetime fields values
+
 ## [0.2.12] - 2026-03-16
 - Fixed: bc break with symfony 5 in 0.2.11
 

src/EventListener/FormGeneratorListener.php

@@ -196,6 +196,9 @@ public function onPrepareFormData(array &$submittedData, array &$labels, array $
             }
 
             if (\in_array($formField->rgxp, ['date', 'time', 'datim'])) {
+                if ('' === $data) {
+                    continue;
+                }
                 $objDate = new Date($data, Date::getFormatFromRgxp($formField->rgxp));
                 $submittedData[$formField->name] = $objDate->tstamp;
             }