Fix for when the logged in user's details doesnt include an objectclass (because the query didnt have the ACLs to return them).

This should help #330 but doesnt allow the user to login even if they have the right objectclasses, but the query didnt return them.

app/Ldap/Rules/LoginObjectclassRule.php

@@ -17,7 +17,10 @@ class LoginObjectclassRule implements Rule
     public function passes(LdapRecord $user,?Eloquent $model=NULL): bool
     {
 		if ($x=config('pla.login.objectclass')) {
-			return count(array_intersect($user->objectclass,$x));
+			return count(array_intersect(
+				array_map('strtolower',$user?->objectclass ?: []),
+				array_map('strtolower',$x)
+			));
 
 		// Otherwise allow the user to login
 		} else {