.

wcfs/δbtail.go

@@ -315,7 +315,7 @@ func (δΒtail *ΔBtail) Get(ctx context.Context, root *Tree, key Key, at zodb.T
 	// @tail[key] is not present - key was not changing in (tail, head].
 	// since at ∈ (tail, head] we can use @head[key] as the result
 	xvalue, ok, err := root.Get(ctx, key)
-	if err != nil {
+	if err != nil || !ok {
 		return
 	}
 	v, ok := xvalue.(zodb.IPersistent)