fix(v3): improve vdom sync logic

src/platforms/app-plus/service/framework/plugins/vdom-sync.js

@@ -138,9 +138,12 @@ export class VDomSync {
 
   removeVm (vm) {
     const cid = vm._$id
-    // 移除尚未同步的data
-    this.batchData = this.batchData.filter(data => data[1][0] !== cid)
-    delete this.vms[cid]
+    if (vm === this.vms[cid]) { // 仅相同vm的才移除，否则保留
+      // 目前同一位置的vm，cid均一样
+      // 移除尚未同步的data
+      this.batchData = this.batchData.filter(data => data[1][0] !== cid)
+      delete this.vms[cid]
+    }
   }
 
   addElement (elm) {