o Minor bugfixes: - Make sure we never mark the wrong rendezvous circuit as having had its introduction cell acknowleged by the introduction-point relay. Previously, when we received an INTRODUCE_ACK cell on a client-side hidden-service introduction circuit, we might have marked a rendezvous circuit other than the one we specified in the INTRODUCE1 cell as INTRO_ACKED, which would have produced a warning message and interfered with the hidden service connection-establishment process. Bugfix on 0.2.3.3-alpha, when the stream-isolation feature which might cause Tor to open multiple rendezvous circuits for the same hidden service was added. Fixes bug 4759.