onActivated/onDeactivated not triggered when re-mount/unmount a v-if descendant component

[Qzki]

Vue version

3.4.38

Link to minimal reproduction

https://play.vuejs.org/#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

Steps to reproduce

Click 'Switch' button to unmount/remount the descendant component.

What is expected?

According to the documentation, onActivated/onDeactivated should get called when mount/unmount even on a descendant component.

What is actually happening?

onActivated triggered only on first mount, then click 'Switch' button to unmount/re-mount the component will trigger neither of onDeactivated and onActivated.

System Info

No response

Any additional comments?

No response

[edison1105]

duplicate of #10806
a workaround

<template>
    <KeepAlive>
        <ConditionalChild v-if="flag" />
    </KeepAlive>
    <button @click="flag = !flag">Switch</button>
</template>