Prefs and themes with LDAP

[Edwin Culp]

When using hordeThemes and saving prefs in ldap, once a theme is assigned
from the options menu, I can find no way to get back to the default theme 
horde html.php.  I would guess that when choosing the default value that 
theme is assigned a null value which does not get past line 311 in 
Prefs/ldap.php and for it the be eliminated in openldap the attribute must 
be empty, AFAIK.

As a "work around" I have added 'none' to both the horde and imp prefs.php.  
This forces the horde.php default because none isn't found and no errors
seem to be generated. 

'enum' => array(''           => sprintf(_("%s Standard"),
GLOBALS['registry']->getParam('name')),
                    'none'     => _("none"),
                    'barbie'     => _("Barbie"),

Mysql doesn't seem to have an equivalent, to line 311 in ldap.php, check for
empty, dirty prefs but I really didn't check that closely so I am probably 
mistaken, plus I am assuming that it will go back to the default of html.php.

Is there any reason to not use the above work around?  Am I completely 
missing the boat here? 

Thanks,

ed

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