steps

• Clone the minimal repository here and run sbt.
• Observe that mimaVersionCheckExtraVersions (provided by the mima-version-check plugin) is a valid key.
• Observe that mima<tab> shows completions for MiMa keys, but not for keys provided by mima-version-check.

problem

Tab completion does not suggest keys provided by mima-version-check, but does suggest keys provided by MiMa (which is pulled in as a transitive dependency).

expectation

All available keys should be visible through tab completion.

notes

It's possible that this is a duplicate. I didn't see anything that seemed to be exactly the same but I don't understand sbt very well.