diff --git a/core/lib/Drupal/Core/Entity/ContentEntityForm.php b/core/lib/Drupal/Core/Entity/ContentEntityForm.php
index 35834ab..a667790 100644
--- a/core/lib/Drupal/Core/Entity/ContentEntityForm.php
+++ b/core/lib/Drupal/Core/Entity/ContentEntityForm.php
@@ -50,6 +50,11 @@ public static function create(ContainerInterface $container) {
    */
   public function form(array $form, FormStateInterface $form_state) {
     $form = parent::form($form, $form_state);
+
+    // Content entity forms only need to rebuild the entity in the validation
+    // and the submit handler.
+    unset($form['#after_build']);
+
     $this->getFormDisplay($form_state)->buildForm($this->entity, $form, $form_state);
     // Allow modules to act before and after form language is updated.
     $form['#entity_builders']['update_form_langcode'] = [$this, 'updateFormLangcode'];