<<<<<<< SEARCH
import { isReactive, reactiveReadArray, toReactive } from '@vue/reactivity'
=======
import {
  isReactive,
  isShallow,
  reactiveReadArray,
  toReactive,
} from '@vue/reactivity'
>>>>>>> REPLACE
<<<<<<< SEARCH
    const sourceIsReactiveArray = isReactive(source)
=======
    const sourceIsReactiveArray = isReactive(source) && !isShallow(source)
>>>>>>> REPLACE