Issue #2895058 by fox mulder: Country element doesn't display field description

src/Element/Country.php

@@ -108,6 +108,10 @@ class Country extends FormElement {
         $element['country_code']['#ajax'] = $element['#ajax'];
         unset($element['#ajax']);
       }
+      if (!empty($element['#description'])) {
+        $element['country_code']['#description'] = $element['#description'];
+        unset($element['#description']);
+      }
     }
     // Remove the 'country_code' level from form state values.
     $element['country_code']['#parents'] = $element['#parents'];