Users on mastodon.mit.edu aren't getting their timelines regenerated when they log back in after an inactive period. I'm trying to check whether any RegenerationWorkers are getting run, but don't know how to check that other than grepping through journalctl output, which isn't turning up anything. Poking at the rails console, it looks like "account:#{@account.id}:regeneration" isn't set for a user who just signed in a couple of hours ago after a long absence...