Someone found a problem, didn't have the reputation, but misused the site in good faith, allowing it to get on your radar, and then we found the duplicate, fixed it, updated it, merged it, and then made the site better for the win. What's the problem here? :)
It might not be pretty or an ideally designed workflow, but it does seem to actually work!
- Out of curiosity, we should investigate a query to search for new posts with things like "doesn't work" from low rep users and see if we can find some low hanging fruit of this exact sort of thing, I'm willing to bet it'd be a nice "things to update" list.