where.add((Constraint("cn", "cn", CharField()), 'in', ["(foo)", "(bar)"]), AND)
self.assertEquals(where.as_sql(), "(|(cn=\\28foo\\29)(cn=\\28bar\\29))")
where.add((Constraint("cn", "cn", CharField()), 'in', ["(foo)", "(bar)"]), AND)
self.assertEquals(where.as_sql(), "(|(cn=\\28foo\\29)(cn=\\28bar\\29))")