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Weird, I posted this yesterday, why didn't HN detect the duplicate? https://news.ycombinator.com/item?id=45203769

Your's has to little upvotes. I think it is only detected as duplicate if it had made the front page in the last few months.

Hm, I've had my submissions deduped before, where the existing post also had few upvotes and was definitely not on the front page.

same