Hey, thanks for the information folks! So after speaking to the player, it does seem like like this bug has come back. The player in question tried to recreate the bug and added 8 more wins to 38/38.
I'll forward the player, convo and the map as a bug report.
Thanks again! That's a bummer but at least it's not malicious.
edit: Just as a reference for anyone interested, here's what the play log looks like: https://imgur.com/PUBcfXr
i dunno was actually one of the lower-attempt winners too.
Edited 4/6/2019 13:57:06