The merge tool's pending bypassed the merge check's one writer from the tools'
bundle (issue 456); it is now served beside it. A verdict no build judges names
the announced base head, so the merge tool no longer refuses it for ever. A
late verdict keeps its account, a trunk is read again in each head's turn so a
fresh verdict is not put out of date, and a delivered member counts when a
rebased member's group is composed again (novox/hq ADR 0323).
