single onion: Padding negotiated cell from wrong hop
As of master commit d616214e47, I occasionally see these errors in chutney:
PASS: single-onion-v23
Detail: chutney/tools/warnings.sh /home/dev/chutney/net/nodes.1571380287
Warning: Padding negotiated cell from wrong hop on circuit 11 Number: 1
Warning: Received circuit padding stop command for unknown machine. Number: 1