added todo

app/imports/api/engine/computation/buildComputation/linkCalculationDependencies.js

@@ -22,6 +22,7 @@ export default function linkCalculationDependencies(dependencyGraph, prop, {prop
         );
         if (!ancestorProp) return;
         // Link the ancestor prop as a direct dependency
+        // TODO: we might be referencing a calculation sub-field, depend on that instead
         dependencyGraph.addLink(
           calcNodeId, ancestorProp._id, 'ancestorReference'
         );