[web/views] Fix AutoformSectionRelationTags.set_muledit_editable It is a method call, so `self` is passed implicitely as first argument, so it is useless to pass it also explicitely as second argument. In fact, it does not work without this. A monkey patch had been done in a private client's project, but the fix is revelant for everyone.

# -*- coding: utf-8 -*-
# copyright %(year)s %(author)s, all rights reserved.
# contact %(author-web-site)s -- mailto:%(author-email)s
#
%(long-license)s
"""%(distname)s specific hooks and operations"""