ref value change in life-cycle hooks does not trigger watch & watchEffect #12624
Description
Version
2.7.3
Reproduction link
Steps to reproduce
Click on the "toggle" button to see, that callbacks are not called in the child component (Child.vue) after mount, activate, and deactivate.
In App.vue after mount watch does not run either.
What is expected?
WatchEffect & watch callbacks should be called after ref value changed in onMounted, onActivated
What is actually happening?
watch, watchEffect callbacks not called after the value changed in life-cycle hooks (onMounted, onActivated, onDeactivated)