Impacted versions:
Latest Odoo Forum

Steps to reproduce:
Get a nofitication from the Odoo forum (by subscription or by a comment to your posting)

Current behavior:
The notification email contain the subject: "Re: False" and contains no link to the forum post.
Expected behavior:
The notification email contains the title of the forum post and a link to the forum post.
Video/Screenshot link (optional):

![selection_195](https://cloud.githubusercontent.com/assets/1814941/15383579/60b554b0-1d94-11e6-8b1b-875a11e3d82b.png)

addons/website_forum/controllers/main.py
Followers = request.env['mail.followers']
        Data = request.env["ir.model.data"]
        user = User.sudo().search([('id', '=', user_id)])
        current_user = request.env.user.sudo()
        
        
        if (not user or (user.karma < 1 and current_user.karma < forum.karma_unlink_all)):
            return werkzeug.utils.redirect("/forum/%s" % slug(forum))
        values = self._prepare_forum_values(forum=forum, **post)
        
        user_question_ids = Post.search([
            ('parent_id', '=', False),
            ('forum_id', '=', forum.id), ('create_uid', '=', user.id)],
            order='create_date desc')
        count_user_questions = len(user_question_ids)
        if (user_id != request.session.uid and not
                (user.website_published or
                    (count_user_questions and current_user.karma > forum.karma_unlink_all))):
            return request.render("website_forum.private_profile", values, status=404)
        
        
        post_display_limit = None
        if current_user.karma < forum.karma_unlink_all:
            post_display_limit = 20
        user_questions = user_question_ids[:post_display_limit]
        user_answer_ids = Post.search([
            ('parent_id', '!=', False),
            ('forum_id', '=', forum.id), ('create_uid', '=', user.id)],
            order='create_date desc')
        count_user_answers = len(user_answer_ids)