Concurrent map writes crash after publish

[russelltg]

Detailed Description

Aptly crashed with a concurrent map writes error. Log: https://gist.github.com/russelltg/6ece2a67e723b2fb7560851a69257055

This has happened a few times now, seems to happen after every few weeks or so. Let me know if there's any additional info I can provide

Your Environment

$ aptly version
aptly version: '1.5.0+48+gecc05518'