GitHub Maven Packages returns 422 error code for Scala 3 artifacts

Hi ~

I have an example package here: GitHub - er1c/github-packages-tests

It works fine for Scala 2.10, 2.11, 2.12, and 2.13. However, when trying to publish an artifact based upon 3.0.0-RC1 I get an error:

[error] stack trace is suppressed; run last publish for the full output
[error] (publish) Server returned HTTP response code: 422 for URL:
[error] Total time: 3 s, completed Apr 4, 2021 9:24:25 PM

These milestone and release candidates add the binary compatibility version as part of the artifact (e.g.

This doesn’t look to be compatible for some reason with GitHub Packages?

Any advise would be appreciated.