Issue #2427095 by likin, idebr, prateekMehta: Formatting guidelines are not...

Issue #2427095 by likin, idebr, prateekMehta: Formatting guidelines are not shown for textareas without WYSIWYG

core/themes/classy/templates/content-edit/filter-guidelines.html.twig

@@ -22,7 +22,7 @@
 {%
   set classes = [
     'filter-guidelines-item',
-    'filter-guidelines-' ~ format.format,
+    'filter-guidelines-' ~ format.id,
   ]
 %}
 <div{{ attributes.addClass(classes) }}>