Add choice_label support to CrudAutocompleteType

When using EntityFilter with autocomplete() and a custom choice_label,
the form crashed because CrudAutocompleteType did not define choice_label
as a valid option.

Changes:
- Add choice_label option to CrudAutocompleteType
- Preserve user-defined choice_label in CrudAutocompleteSubscriber

Fix #7462

Author: Amoifr

src/Form/EventListener/CrudAutocompleteSubscriber.php

@@ -48,16 +48,20 @@ public function preSetData(FormEvent $event)
         // the renderAsHtml flag controls how TomSelect renders the item (via data-ea-autocomplete-render-items-as-html).
         $callback = $options['autocomplete_callback'] ?? null;
         $template = $options['autocomplete_template'] ?? null;
-
-        if (null !== $template) {
-            $twig = $this->twig;
-            $options['choice_label'] = static function ($entity) use ($twig, $template): string {
-                return $twig->render($template, ['entity' => $entity]);
-            };
-        } elseif (null !== $callback) {
-            $options['choice_label'] = static function ($entity) use ($callback): string {
-                return (string) $callback($entity);
-            };
+        $choiceLabel = $options['choice_label'] ?? null;
+
+        // only generate choice_label from template/callback if not already set by the user
+        if (null === $choiceLabel) {
+            if (null !== $template) {
+                $twig = $this->twig;
+                $options['choice_label'] = static function ($entity) use ($twig, $template): string {
+                    return $twig->render($template, ['entity' => $entity]);
+                };
+            } elseif (null !== $callback) {
+                $options['choice_label'] = static function ($entity) use ($callback): string {
+                    return (string) $callback($entity);
+                };
+            }
         }
 
         // remove custom options before passing to EntityType

src/Form/Type/CrudAutocompleteType.php

@@ -48,11 +48,14 @@ public function configureOptions(OptionsResolver $resolver): void
             // options for custom rendering of selected items (to match the rendering of the other entries in the dropdown)
             'autocomplete_callback' => null,
             'autocomplete_template' => null,
+            // allow choice_label to customize how selected items are displayed
+            'choice_label' => null,
         ]);
 
         $resolver->setRequired(['class']);
         $resolver->setAllowedTypes('autocomplete_callback', ['null', 'callable']);
         $resolver->setAllowedTypes('autocomplete_template', ['null', 'string']);
+        $resolver->setAllowedTypes('choice_label', ['null', 'string', 'callable', 'bool']);
     }
 
     public function getBlockPrefix(): string