The auction timeout bid a random legal rank, which could hand the
auction (and the call) to a disconnected player. An absent bidder now
always passes; only the last player standing before any bid cannot
pass, and is made to bid the ace - its suit is picked at random by the
existing call timeout. This keeps a deal from stalling without a caller
while never letting an absent player outbid someone.
The deadline log line now says which of the two happened.