Bug: outgoing relay cell sent from src/or/relay.c:836 has n_chan==NULL.
Got the following warn msg while browsing,
[warn] circuit_package_relay_cell(): Bug: outgoing relay cell sent from src/or/relay.c:836 has n_chan==NULL. Dropping. (on Tor 0.3.1.4-alpha fab91a290ded3e74)