I'm hitting the weirdest bug in production randomly (automated reporting) and I don't know how to reproduce... This code:

fun apiUrl(param: String): String {
    return "/v2/$param"
}

Is somehow returning

"/v2/kotlin.Unit"

and hitting my server. Anyone seen anything like this? My code is multiplatform (Android/iOS/JS), but these are only coming from the iOS Kotlin/native version.

Did you try a clean build?

Yes, doesn't make a difference

What does the calling site from IOS Kotlin/Native look like?

All Kotlin from the ViewModel all the way down. E.g. I instantiate a kotlin class repreesnting the whole app

let app = AppViewModel()

, and then there's Swift code just binds to some view model fields to render things into UIViews. This call happens pretty deep in Kotlin-land