fix: do not use ancestor parse when the model defines a new dataset (v…

…ega#7498) fixes vega#6944
BradyJ27 · Oct 19, 2023 · aef1466 · aef1466
1 parent 6fa995c
commit aef1466
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/compile/data/parse.ts b/src/compile/data/parse.ts
@@ -300,9 +300,12 @@ export function parseData(model: Model): DataComponent {
   let head = parseRoot(model, model.component.data.sources);
 
   const {outputNodes, outputNodeRefCounts} = model.component.data;
-  const ancestorParse = model.parent ? model.parent.component.data.ancestorParse.clone() : new AncestorParse();
   const data = model.data;
 
+  const newData = data && (isGenerator(data) || isUrlData(data) || isInlineData(data));
+  const ancestorParse =
+    !newData && model.parent ? model.parent.component.data.ancestorParse.clone() : new AncestorParse();
+
   if (isGenerator(data)) {
     // insert generator transform
     if (isSequenceGenerator(data)) {