The sandbox refuses no module the node holds composing without the change, a module blamed for a refusal among them (issue 774, review round 1)

internal/selfcompose/candidate.go

@@ -191,6 +191,9 @@ func (s *Shadow) composeCandidate(ctx context.Context, c *Composer, ask delivery
 		if err != nil {
 			return
 		}
+		// What the node holds composing without the candidate, a module blamed for a refusal among them, is no refusal of
+		// the change (review round 1).
+		in.ComposedHow.HeldBefore = maps.Clone(baseHeld)
 		// As the sandbox reads it (composer.SentInput, the one shape): this node's own modules as taken in from their
 		// builds, every other module's manifest left to the cases.
 		if body, err := json.Marshal(composer.SentInput(in, laid.env.Node)); err == nil {