Version

3.0.0

Reproduction link

https://codepen.io/laineus/pen/eYZXmWZ

Steps to reproduce

const MASTER_DATA = {}
export default {
  data () {
    return {
      MASTER_DATA // Because I want to use the Data in template
    }
  },
  computed: {
    sameAsOriginal () {
      // Vue2 returns true
      // Vue3 returns false
      return MASTER_DATA === this.MASTER_DATA
    }
  }
}

What is expected?

Vue.js 2.x: An Object defined in data-option supposed to be same references as original Object.

What is actually happening?

Vue 3: The references will not be same as original.

I am not sure if this is correct behavior in Vue 3, but I couldn't find about that in the doc . Thank you.

this.MASTER_DATA is a proxy, please use toRaw for example,

return MASTER_DATA === toRaw(this.MASTER_DATA)

@unbyte Thank you. I understand. :bow:

Sorry for taking your time.