When i've had try to post redirect to login form (user is log in before i try to post)
When clicking show profile i get:

[User Error] Object::__call() Method 'getAbstract' not found in class 'ForumHolder_Controller'
GET /ForumMemberProfile/show/1
Line 133 in /home/xxxx/public_html/sapphire/core/Object.php

Source
124
125          } else if($config['function_str']) {
126             $function = Object::$extraMethods[$this->class][strtolower($methodName)]['function'] = create_function('$obj, $args', $config['function_str']);
127             return $function($this, $args);
128
129          } else {
130             user_error("Object::__call() Method '$methodName' in class '$this->class' an invalid format: " . var_export(Object::$extraMethods[$this->class][$methodName],true), E_USER_ERROR);
131          }
132       } else {
133          user_error("Object::__call() Method '$methodName' not found in class '$this->class'", E_USER_ERROR);
134       }
135    }
136
137    /**
138     * This function allows you to overload class creation methods, so certain classes are
139     * always created correctly over your system.

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SS 2.3.0rc3 + forum 0.2 rc1