mayhem set the "no-nag" flag for my username in MB, which should make the nag-check endpoint return 0 (no need to nag) and return an astronomical number of days until next donation.

However the endpoint (https://metabrainz.org/donations/nag-check?editor=mr_monkey) currently returns `1,-36.88...` meaning I should be nagged, and my last donation was 36 days ago.

According to mayhem this is incorrect, so something is afoot.

Additionally, we have recently had a sentry error reporting a slow-running DB query for the same query in ListenBrainz: https://sentry.metabrainz.org/organizations/metabrainz/issues/6952/?notification_uuid=e7adb55a-dd2b-4e6b-9a4b-c3b5491a6b83&project=2&referrer=weekly_report
It would be good to see if LB (and maybe MEB) are missing an index to make the query faster.