def flush(self):
        self.clear()
        self.delete()
        self.create()
Check that L{ProxyRequest.process} correctly parse port in the incoming
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.4/django/contrib/sessions/backends/base.py/SessionBase.flush--crossover with--dataset/ETHPy150Open twisted/twisted/twisted/web/test/test_proxy.py/ProxyRequestTests.test_processWithPort