fix: multi-input field handling for zaak creation arguments

Author: mvdhoek1

src/Contracts/AbstractCreateZaakAction.php

@@ -250,6 +250,7 @@ protected function map_zaak_properties_args(): array
 			}
 
 			$property_value = rgar( $this->entry, (string) $field->id );
+			dd( $property_value, $field );
 
 			if ( empty( $property_value ) ) {
 				continue;