Keep a have's sealed values only when they are of what runs, when a waiting-yes have says running again (issue 774, review round 1)

internal/agent/agent.go

@@ -1552,7 +1552,12 @@ func (a *Agent) waitsForYes(ctx context.Context, module string, w wantNow, comp
 		// Composed back to what runs: a have still waiting for a yes for a move since gone says running again, or it waits
 		// for a yes nobody needs (issue 774, 2026-10-31: four providers stayed waiting-yes once their consumers composed).
 		if h, ok := a.env.Haves.Read(ctx, module); ok && h.Phase == string(delivery.PhaseWaitingYes) {
-			a.writeHave(ctx, Have{Module: module, FP: r.FP, Composed: r.Composed, Phase: string(delivery.PhaseRunning), Sealed: h.Sealed})
+			// Its sealed values only when they are of what runs; else writeHave reads them (sealedOf).
+			var sealed delivery.Seals
+			if h.Composed == r.Composed {
+				sealed = h.Sealed
+			}
+			a.writeHave(ctx, Have{Module: module, FP: r.FP, Composed: r.Composed, Phase: string(delivery.PhaseRunning), Sealed: sealed})
 		}
 		return false
 	}