A merge check's verdict now names the trunk commit it judged (novox/hq ADR
0323, issue 341), but the forge kept it green after another merge moved the
trunk, the merge tool merged on it, and mesh-delivery kept the delivery ready.
The forge's holder puts both statuses of every open pull request into a moved
trunk back to pending with the reason and runs nothing; the merge tool compares
the verdict's trunk commit with the trunk's head, asks the check once and never
merges by itself; mesh-delivery sends a ready delivery back to proposed, counts
only a verdict for the trunk's head, and composes a group again for a rebased
member instead of holding it.
