Version

2.6.11

Reproduction link

https://codesandbox.io/s/ssr-reactivity-up6nh?file=/pages/index.vue

Steps to reproduce

• The id attribute of the div does not match the myid value from the component (requires page refresh sometimes on first load).
• Notice that $forceUpdate() (first button) does not update the id attribute of the div
• Changing the value of the val data (second button) property triggers the reactivity

What is expected?

Every reference to the myid computed property should match

What is actually happening?

The id attribute of the div does not match the myid value

The same component used in client-side rendering does not exhibit this issue.