illegal cyclic reference involving type S #11640
Description
I have code that compiles well on Scala 2.11 and 2.12, but on 2.13 it throws this error:
[error] /home/travis/build/fdietze/scala-js-d3v4/src/main/scala/D3.scala:34:31: illegal cyclic reference involving type S
[error] type ContinuousScale[S <: ContinuousScale[S]] = d3scale.ContinuousScale[S]
[error] ^
(https://travis-ci.org/fdietze/scala-js-d3v4/jobs/560239423#L722)
Overview of other builds for different scala versions: https://travis-ci.org/fdietze/scala-js-d3v4/builds/560239419
code: https://github.com/fdietze/scala-js-d3v4/blob/master/src/main/scala/D3.scala#L34
Is this a bug, or am I overlooking something for Scala 2.13?