Access denied clicking on parent menu of customized sub menu

[Geo3010]

The BO menu is made of main pages, or tabs, (like "Preferences") which can contain a sub menu of sub tabs (like "General", "Orders", "Products", ...).

It seems that when you click on the parent tab, the action focuses on its first sub tab.

 

Now if I create a profile not allowed to access the first sub tab of a menu tab, when an employee with such profile clicks on the parent menu tab, the system raises an "Access denied" error.

 

It seems that the error raises simply because the parent does not focus on its first ACCESSIBLE sub tab but stubbornly on its first sub tab, accessible or not!

 

Can it be? 

Is there a way to set the "parent" focus?

 

Thank you.

[Geo3010]

In fact, the trouble comes from this link:

<a href="{if $t.sub_tabs|@count && isset($t.sub_tabs[0].href)}{$t.sub_tabs[0].href}{else}{$t.href}{/if}" class="title" >
<i class="icon-{$t.class_name}"></i>
<span>{if $t.name eq ''}{$t.class_name}{else}{$t.name}{/if}</span>
</a>

inside admin/themes/default/template/nav.tpl

 

And in particular:

$t.sub_tabs[0]

[Geo3010]

Workaround:

{if $t.sub_tabs|@count && reset($t.sub_tabs)}
	{assign var="first_k" value=key($t.sub_tabs)}
{/if}
<a href="{if $t.sub_tabs|@count && isset($t.sub_tabs[$first_k].href)}{$t.sub_tabs[$first_k].href}{else}{$t.href}{/if}" class="title" >
	<i class="icon-{$t.class_name}"></i>
	<span>{if $t.name eq ''}{$t.class_name}{else}{$t.name}{/if}</span>
</a>