Mixin override function in a extern C++ class leads to possible bug?

[Zoadian]

On Monday, 3 April 2023 at 11:24:16 UTC, Zoadian wrote:


ok, i think i found the real problem: somehow the compiler treats 
my interface IUnknown specially. i've filed a bug report: 
https://issues.dlang.org/show_bug.cgi?id=23819

https://run.dlang.io/is/YuouXd

vs

https://run.dlang.io/is/nxRwN0

and this leads to to compiler messing up my code without any 
warning.