[Issue 15583] [REG] topN without uniform can show quadratic performance

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15583

--- Comment #5 from Andrei Alexandrescu <and...@erdani.com> ---
https://github.com/dlang/phobos/pull/4815 should fix this

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