diff -u b/core/modules/options/src/Plugin/Field/FieldFormatter/OptionsDefaultFormatter.php b/core/modules/options/src/Plugin/Field/FieldFormatter/OptionsDefaultFormatter.php
--- b/core/modules/options/src/Plugin/Field/FieldFormatter/OptionsDefaultFormatter.php
+++ b/core/modules/options/src/Plugin/Field/FieldFormatter/OptionsDefaultFormatter.php
@@ -42,7 +42,7 @@
         ->getOptionsProvider('value', $items->getEntity());
       // Flatten the possible options, to support opt groups.
       $options = $this->flattenOptions($provider->getPossibleOptions());
-  
+
       foreach ($items as $delta => $item) {
         $value = $item->value;
         // If the stored value is in the current set of allowed values, display