Scala 3 enums cause error at runtime

[hejfelix]

enum Event:
  case Increment
  case Decrement

val eventPickler = summon[_root_.boopickle.Pickler[Event]]

at runtime, I get the following:

Cannot add same class (fennec.examples.CounterKernel$Event) twice to a composite pickler

looks like it's finding the type Event for both cases, which is how Scala 3 seems to treat enums wrt. type inference, so maybe it's natural.

[hejfelix]

It does indeed seem to work for the cases individually:

val incPickler   = summon[Pickler[Event.Increment.type]]
val decPickler   = summon[Pickler[Event.Decrement.type]]

the above goes by without problems.