| 12345678 |   o Minor bugfixes:    - When a hidden service turns an extra service-side introduction      circuit into a general-purpose circuit, free the rend_data and      intro_key fields first, so they won't be leaked if the circuit      is cannibalized for use as another service-side introduction      circuit.  Bugfix on 0.2.1.7-alpha; fixes bug 4251.
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