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kotlinlang

Oh damn, I found the bug: <https://youtrack.jetbrains.com/issue/KTIJ-16107/MPP-False-positive-incompatible-types-in-.java-when-using-expect-class-returned-by-non-expect-member-from-common-when-actual-is|https://youtrack.jetbrains.com/issue/KTIJ-16107/MPP-False-positive-incompatible-types-in[…]-returned-by-non-expect-member-from-common-when-actual-is>
I think it's a variation of this one. Which is already open for a long, long time with no fix in sight. :disappointed: