Template Ref watcher not triggered in Vue 2.7

[dm4t2]

Version

2.7.0-beta.4

Reproduction link

codesandbox.io

Steps to reproduce

Open the CodeSandbox and watch the console output.

What is expected?

There should be a log entry.

What is actually happening?

There's no log entry because the watcher is not triggered.

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This works in Vue 2.6 (with Composition API plugin) and Vue 3:

https://codesandbox.io/s/vue-2-6-14-template-ref-watcher-working-example-3fec25?file=/src/App.vue
https://codesandbox.io/s/vue-3-2-33-template-ref-watcher-working-example-nd1imp?file=/src/App.vue

[stevebauman]

Hmm this still isn't resolved in 2.7.7...

[dm4t2]

My CodeSandbox reproduction works with v2.7.7: https://codesandbox.io/s/vue-2-7-template-ref-watcher-issue-be6ghd

[stevebauman]

Unfortunately not with an array of template refs:

#12675