Row 152 round 1, Dewey's candidate on 56639c99b. Filbert approved
(comment 28741). The bus marks a waiting message launchable or not;
when the target isn't in the launch block, launch.by is still told,
with a notice saying the launch would be refused, and talk prints that
launch.by can't launch the role. Sage's landing gate ran on 5f57d85e5
plus the candidate: 25 steps, all rc 0.
Co-Authored-By: Claude Opus 5.5 <[email protected]>