feature #6250 Allow fields containing null-safe property paths (alshe…

…netsky)

This PR was merged into the 4.x branch.

Discussion
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Allow fields containing null-safe property paths

see #6249

Added additional field name sanitization so that symfony form does not throw an error on fields with null-safe property paths.

Commits
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9d07755 Allow fields containing null-safe property paths

src/Form/Type/CrudFormType.php

@@ -48,7 +48,7 @@ public function buildForm(FormBuilderInterface $builder, array $options): void
             // 'property_path' option to keep the original field name
             if (str_contains($fieldDto->getProperty(), '.')) {
                 $formFieldOptions['property_path'] = $fieldDto->getProperty();
-                $name = str_replace(['.', '[', ']'], '_', $fieldDto->getProperty());
+                $name = str_replace(['.', '[', ']', '?'], '_', $fieldDto->getProperty());
             } else {
                 $name = $fieldDto->getProperty();
             }