HarmonyOS 鸿蒙Next中Navigation返回到栈中指定页面时，onPop不生效是怎么回事？

HarmonyOS 鸿蒙Next中Navigation返回到栈中指定页面时，onPop不生效是怎么回事？

import { promptAction } from "@kit.ArkUI"  
  
const stack = new NavPathStack()  
  
@Entry  
@Component  
export struct Index {  
@Builder  
PageMap(name: string) {  
if (name === "second") {  
Second()  
} else if (name === "third") {  
Third()  
} else if (name === "forth") {  
Forth()  
}  
}  
  
build() {  
Navigation(stack) {  
Text('首页')  
.margin({ top: 50 })  
.onClick(() => {  
stack.pushPath({  
name: "second",  
onPop: () => {  
  
}  
})  
})  
}  
.mode(NavigationMode.Stack)  
.navDestination(this.PageMap)  
}  
}  
  
@Component  
export struct Second {  
build() {  
NavDestination() {  
Text('页面二，点击进入页面三')  
.margin({ top: 50 })  
.onClick(() => {  
stack.pushPath({  
name: "third",  
onPop: (popInfo: PopInfo) => {  
promptAction.showToast({  
message: '返回结果为' + popInfo.result as string  
})  
}  
})  
})  
}  
}  
}  
  
  
@Component  
export struct Third {  
build() {  
NavDestination() {  
Text('页面三，点击进入页面四')  
.margin({ top: 50 })  
.onClick(() => {  
stack.pushPath({  
name: "forth",  
onPop: () => {  
  
}  
})  
})  
}  
}  
}  
  
@Component  
export struct Forth {  
build() {  
NavDestination() {  
Text('页面四,点击返回页面二')  
.margin({ top: 50 })  
.onClick(() => {  
stack.popToName('second', 'aaaaaaaa')  
})  
}  
}  
}

首页->Second->Third->Forth，从Forth直接返回Second，携带的参数在onPop里接收不到