Fix append_entries_response assertion error
Fix append_entries_response assertion error

It is possible for a replica to receive a AppendEntries::stale_term
response with a term matching the local term in the case of a delayed
message.

Hoverbear/raft,tschottdorf/raft,frewsxcv/raft-rs,danburkert/raft,danburkert/raft,pwoolcoc/raft,tschottdorf/raft,tempbottle/raft-1,jamwt/raft,placrosse/raft,Hoverbear/raft,achanda/raft,frewsxcv/raft-rs