The bbcode list doesn't work if we use :
[list=disc]...
[list=square]...
[list=cirle]...

It's a bug because bbcode.php should recognize it :
includes/bbcodes.php, function bbcode_list() :

else if (preg_match('#^(disc|circle|square)$#i', $type))

{ $tpl = 'ulist_open'; $type = strtolower($type); }