Update modular_graph_and_candidates.py

modular_graph_and_candidates.py

@@ -1050,10 +1050,17 @@ const link = g.selectAll('path.link')
 
 const linkedByIndex = {};
 timeline.links.forEach(d => {
-  linkedByIndex[`${d.source.id},${d.target.id}`] = true;
-  linkedByIndex[`${d.target.id},${d.source.id}`] = true;
+  const s = typeof d.source === 'object' ? d.source.id : d.source;
+  const t = typeof d.target === 'object' ? d.target.id : d.target;
+  linkedByIndex[`${s},${t}`] = true;
+  linkedByIndex[`${t},${s}`] = true;
 });
 
+function isConnected(a, b) {
+  return linkedByIndex[`${a.id},${b.id}`] || a.id === b.id;
+}
+
+
 function isConnected(a, b) {
   return linkedByIndex[`${a.id},${b.id}`] || a.id === b.id;
 }