diff --git a/public/app/plugins/datasource/graphite/state/context.tsx b/public/app/plugins/datasource/graphite/state/context.tsx
index 6433325f773..9fc504f075e 100644
--- a/public/app/plugins/datasource/graphite/state/context.tsx
+++ b/public/app/plugins/datasource/graphite/state/context.tsx
@@ -36,6 +36,7 @@ export const GraphiteQueryEditorContext = ({
     });
   }, []);
 
+  // synchronise changes provided in props with editor's state
   useEffect(() => {
     dispatch(actions.timeRangeChanged(range));
   }, [dispatch, range]);
diff --git a/public/app/plugins/datasource/graphite/state/store.ts b/public/app/plugins/datasource/graphite/state/store.ts
index 394ef6a5bb5..b7dc42bcf66 100644
--- a/public/app/plugins/datasource/graphite/state/store.ts
+++ b/public/app/plugins/datasource/graphite/state/store.ts
@@ -168,8 +168,6 @@ const reducer = async (action: Action, state: GraphiteQueryEditorState): Promise
     handleTargetChanged(state);
   }
   if (actions.runQuery.match(action)) {
-    // handleTargetChanged() builds target from segments/tags/functions only,
-    // it doesn't handle refresh when target is change explicitly
     state.refresh(state.target.target);
   }
   if (actions.toggleEditorMode.match(action)) {