mbox archives downloaded from the URL provided by the GraphQL API contain multiple copies of the same message
e.g. for ~sircmpwn/free-writers-club
Further thoughts based on a little digging into how different lists behave:
- small/personal lists only duplicate once
- larger lists like ~sircmpwn/free-writers-club and ~sircmpwn/sr.ht-ops duplicate hundreds of times
- massive lists like ~sircmpwn/sr.ht-announce duplicate 1000s of times
Could it be linked to subscriber numbers?