Scaladoc fails to re-substitute macros for inherited members

Description

/** @define macro Super */
abstract class Super {
  /** $macro */
  def inherited: Int = 5
  /** $macro */
  def implemented: Unit
  /** $macro */
  def overridden: String = "test"
}
/**
 * @define name default
 * @define dummy dummy
 */
trait A[T] {
  /** List $name */
  def list(): List[T]
  /** Gets the $name with the given $dummy */
  def get(id: String): Option[T] = None
}
/** @define dummy id */
trait B extends A[String]
/**
 * @define macro Sub
 * @define name banana
 */
class Sub extends Super with B {
  def list(): List[String] = List.empty
  def implemented: Unit = ()
  override def overridden: String = "overridden test"
}

name := "scala-doc-tests"
version := "0.1.0"
scalaVersion := "3.0.0-M2"

mkdir docs
sbt doc

Contributor guide

Tech stack

scala

Domain

documentation

Issue type

bug

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

3

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

half day

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

stale

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

clear

Prerequisites

Scala programmingScaladoc toolingMacro substitution concepts

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

45

Research direction

Investigate the Scaladoc codebase to understand how macro substitution is handled for inherited members. Focus on the macro resolution logic in the documentation generation phase. Review the linked Scala bug report for additional context. Consider writing a test case that replicates the issue.