In DokuWiki template, the TITLE of the page is made from this particular page title plus main wiki name.
E.g., it's
template:dokuwiki [DokuWiki]
But when we are on the main page, this info becomes doubled:
dokuwiki [DokuWiki] or even
MyWiki [MyWiki].
That's not convenient.
It's better to change this code in main.php of DokuWiki template:
<title><?php tpl_pagetitle() ?> [<?php echo strip_tags($conf['title']) ?>]</title>
Make:
<title><?php
$thisPageTitle=tpl_pagetitle(null, 1);
$mainPageTitle=strip_tags($conf['title']);
echo $thisPageTitle;
if ($thisPageTitle != $mainPageTitle) echo " [".$mainPageTitle."]";
?></title>
Et voi-la, "dokuwiki [DokuWiki]" becomes just "DokuWiki",
"MyWiki [MyWiki]" becomes just MyWiki.