KSP2: Compatibility with other code generators wired to generatedKotlin (KGP 2.3+)

[hfhbd]

I have a Kotlin code generator producing Kotlin source code stored in a directory wired to the kotlin.sourceSets.main.generatedKotlin.srcDir(myTask).

I have a (manually written) class in the main sourceSet that refers to a generated class located in the generatedKotlin srcDir, but ksp2 can't resolve this class.
When I change my code generator to use the old kotlin SourceDirectorySet via kotlin.sourceSets.main.kotlin.srcDir(myTask), ksp2 works as expected.

How does ksp2 interact with the new generatedKotlin SourceDirectorySet? Or does KGP do not pass the generatedKotlin sources to ksp2?

KSP: 2.3.4
Kotlin: 2.3.0
Platform: JVM