steps

• clone https://github.com/sake92/metals-mill-scala3-class-params-repro
• open with VSCode+Metals
• import as Mill build (Bloop or mill-bsp)
• run, all good
• add parameter to MyService
• Hello still compiles but should not compile

problem

Hello still compiles.

expectation

Hello should not compile.

notes

Seems to be scala 3 related. It works with 2.13 for example

Original issue in Metals: scalameta/metals#6112