commit bash-20190104 snapshot

doc/bashref.html

@@ -5984,8 +5984,9 @@ option.
 </p><dl compact="compact">
 <dt><code>assoc_expand_once</code></dt>
 <dd><p>If set, the shell suppresses multiple evaluation of associative array
-subscripts during arithmetic expression evaluation and while executing
-builtins that can perform variable assignments.
+subscripts during arithmetic expression evaluation, while executing
+builtins that can perform variable assignments,
+and while executing builtins that perform array dereferencing.
 </p>
 </dd>
 <dt><code>autocd</code></dt>