fix: use a more specific special root key ht Nick

elastic · Jan 18, 2021 · ebbd65f · ebbd65f
1 parent fb25f8f
commit ebbd65f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/chart_types/partition_chart/layout/utils/group_by_rollup.ts b/src/chart_types/partition_chart/layout/utils/group_by_rollup.ts
@@ -58,7 +58,7 @@ interface MapNode extends NodeDescriptor {
 }
 
 /** @internal */
-export const hierarchyRootKey: Key = '';
+export const hierarchyRootKey: Key = '__root_key__';
 
 export type PrimitiveValue = string | number | null; // there could be more but sufficient for now
 type Key = CategoryKey;