Restore context in deny() page
Now that we know when the sidebar is doing the access checks we can
safely construct a new context in deny (without having to worry that
it will try to do more access checks that result in deny, which will
call for a new context... etc).
Patch by: Sverre Rabbelier
from query import *
from subqueries import *
from where import AND, OR
from datastructures import EmptyResultSet
__all__ = ['Query', 'AND', 'OR', 'EmptyResultSet']