https://issues.dlang.org/show_bug.cgi?id=21975
--- Comment #1 from Dlang Bot <[email protected]> --- @pbackus created dlang/phobos pull request #8394 "sumtype: work around issue 21975 in isSumType" mentioning this issue: - sumtype: work around issue 21975 in isSumType isSumType!T now evaluates to true instead of false when T is a templated struct type that implicitly converts to a SumType via alias this. https://github.com/dlang/phobos/pull/8394 --
