I searched for "the conversation game", which is a post I had seen linked on Hackernews the previous day. I found the expected result, but when I clicked the "Hackernews discussion" link, I was led to the wrong discussion. The link points to https://news.ycombinator.com/item?id=43950976, which is a discussion about a blog post from the same domain.
I'd expect the link to point to https://news.ycombinator.com/item?id=44104625.