[turba] issue when I change the priviledges

[steve]

I have a shared calendar, I wanted to add to a group 'patients' the EDIT 
property. I chosed the group from the drop down list, and I got the error:
Fatal error: Call to a member function on a non-object in 
C:\devl\horde\lib\Group.php on line 174

The line is:
         return $this->_groups->getCategoryId($group->getName());

If I add a var_dump just before, I notice this:
$group = string(8) "patients"

Hope that helps