Upon receiving an AppendEntries message with an outdated Term, miniraft's follower nonetheless resets the election timeout.

[RFoe]

miniraft-cpp/miniraft/raft.cpp

Line 192 in 68f990b

VolatileState->ElectionDue = MakeElection(now);

void TRaft::OnAppendEntries(ITimeSource::Time now,
                            TMessageHolder<TAppendEntriesRequest> message) {
  if (message->Term < State->CurrentTerm) {
    VolatileState->ElectionDue = MakeElection(now);
    //...
  }
  // ...
} 

This behavior delayed the initiation of a new round of elections and reduced system availability.