fix(sandbox): reset entire appEnv
diff --git a/src/editor/sandbox/setup.js b/src/editor/sandbox/setup.js
index effd87b..4ed795e 100644
--- a/src/editor/sandbox/setup.js
+++ b/src/editor/sandbox/setup.js
@@ -195,7 +195,7 @@
       clearTimers();
       clearChartEvents(chartInstance);
       // Reset
-      appEnv.config = null;
+      appEnv = {};
       appStore = store;
 
       try {