HarmonyOS onNewWant未回调

当前页面已经处于EntryAbility。

Ability声明：

"abilities": [
{
  "name": "EntryAbility",
  "srcEntry": "./ets/entryability/EntryAbility.ets",
  "description": "$string:EntryAbility_desc",
  "icon": "$media:icon",
  "label": "$string:app_name",
  "startWindowIcon": "$media:icon",
  "startWindowBackground": "$color:start_window_background",
  "exported": true,
  "skills": [
    {
      "entities": [
      "entity.system.home"
      ],
      "actions": [
      "action.system.home"
      ]
    }
  ]
}
]
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点击跳转：

Button($r('app.string.login'), { type: ButtonType.Normal, stateEffect: true })
  .width('100%')
  .height('35vp')
  .borderRadius('5vp')
  .linearGradient({
    colors: [
      [0xFE3546, 0.0],
      [0xFD953D, 1.0],
    ], angle: 90
  })
  .onClick(() => {
    let context = getContext(this) as common.UIAbilityContext;
    let want: Want = {
      abilityName: 'EntryAbility',
      parameters: {
        'pageName': 'mainPage'
      }
    }
    context.startAbility(want)
  })
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期望结果：

onNewWant(want: Want, launchParam: AbilityConstant.LaunchParam): void {
  let parameters = want.parameters
  if (parameters != undefined) {
  let pageName = parameters['pageName']
  if (pageName == 'mainPage') {
  router.replaceUrl({ url: "pages/MainPage" })
  }
  }
}
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onNewWant回调，处理业务逻辑。

实际结果：onNewWant并未回调。