1

app/service/report_memory.js

@@ -959,7 +959,7 @@ module.exports = app => {
         }
 
         async _generateImportChange(sid) {
-            if (this.importChange !== null) return;
+            if (this.importChange !== undefined) return;
             const self = this;
             try {
                 const ctx = this.ctx;