3 - When an exit node tells us that it is rejecting because of its
4 exit policy a stream we expected it to accept (because of its exit
5 policy), do not mark the node as useless for exiting if our
6 expectation was only based on an exit policy summary. Instead,
7 mark the circuit as unsuitable for that particular address. Fixes
8 part of bug 7582; bugfix on 0.2.3.2-alpha.