R3-F-sdk: the first change said after a restart clears a view-unsaid finding left standing

raised started false on every run of follow, so a finding a run before a restart raised was never cleared.
A flag of its own clears it once at the first change said; the raise keeps its own flag, so a change not
said in the new run is still raised past its bound.

Claude-Session: https://claude.ai/code/session_01JG73KJNrH5EgFXMKKYSrig

go/views/emit.go

@@ -115,6 +115,9 @@ func (e Emitter) Start(ctx context.Context, state string, kv jetstream.KeyValue,
 func (e Emitter) follow(ctx context.Context, state string, made time.Time, updates <-chan jetstream.KeyValueEntry, fillNow func() (Fill, error), errs chan<- error) {
 	said := uint64(0)
 	raised := false
+	// A finding a run before this one raised is not known to this one: the first change said clears it once, so a
+	// restart never leaves it standing (the finding is about the state, its key the same).
+	leftover := e.Findings != nil
 	for {
 		select {
 		case <-ctx.Done():
@@ -145,8 +148,9 @@ func (e Emitter) follow(ctx context.Context, state string, made time.Time, updat
 						return
 					}
 				}
-				if raised {
+				if raised || leftover {
 					raised = !e.clearUnsaid(state)
+					leftover = false
 				}
 				said = u.Revision()
 			}

go/views/views_test.go

@@ -446,7 +446,7 @@ func TestViews(t *testing.T) {
 			updates <- kvEntry{key: "a", rev: 1, at: made}
 			close(updates)
 			em.follow(context.Background(), "s", made, updates, func() (Fill, error) { return Fill{}, nil }, nil)
-			if fs.puts != c.puts || fs.deletes != c.puts || len(fs.m) != 0 || len(said) != 1 {
+			if fs.puts != c.puts || fs.deletes != 1 || len(fs.m) != 0 || len(said) != 1 {
 				t.Errorf("%d failures: %d findings written, %d cleared, %d left, said %v", c.fails, fs.puts, fs.deletes, len(fs.m), said)
 			}
 			if c.puts > 0 {
@@ -456,6 +456,18 @@ func TestViews(t *testing.T) {
 				}
 			}
 		}
+		// A finding a run before a restart raised is cleared by the first change said after it.
+		key, value, _ := UnsaidFinding("o", "s", "a", 1, made, "bus away", made)
+		fs := &findingsMap{m: map[string][]byte{key: value}}
+		said, fails = nil, 0
+		em.Findings = fs
+		updates = make(chan jetstream.KeyValueEntry, 1)
+		updates <- kvEntry{key: "b", rev: 2, at: made}
+		close(updates)
+		em.follow(context.Background(), "s", made, updates, func() (Fill, error) { return Fill{}, nil }, nil)
+		if _, left := fs.m[key]; left || len(said) != 1 {
+			t.Errorf("after a restart the leftover finding stands (%v), said %v", left, said)
+		}
 	})
 	t.Run("an event names its state on its subject, and decodes as it was encoded", func(t *testing.T) {
 		if s := StateOfEvent("mesh.stream.mesh-delivery-indexer.event.views.config-candidates"); s != "config-candidates" {