fix parent connections in reducePlan

Author: sokra

lib/reducePlan.js

@@ -52,7 +52,9 @@ module.exports = (plan, limit) => {
 					value: undefined
 				};
 				treeMap.set(parentPath, parent);
+				node.parent = parent;
 			} else {
+				node.parent = parent;
 				if (parent.children === undefined) {
 					parent.children = [node];
 				} else {