#434

frontend/src/components/counts/CountsFieldTree.tsx

@@ -109,9 +109,11 @@ const CountsFieldTree = (
     update ('children', countChildPaths (fields).filter (
 	key => key.includes ('.') && selected.has (key)).join (','))
   }
+  const visibleFields = parent === ''
+      ? fields.filter (field => field.key !== 'thumbnail') : fields
   return (
       <>
-	<FieldGroup fields={fields} path={parent} params={params} enabled selected={selected}
+	<FieldGroup fields={visibleFields} path={parent} params={params} enabled selected={selected}
 	    select={select} update={update}/>
       </>)
 }