Ref not unwrapping other refs set with set on Node

[posva]

• Clone https://github.com/posva/bug-report-vca
• yarn
• node index.js

It should log an object { old: false, new: true } but it logs { old: false, new: { value: true }}

There is also an index.html file to show the (expected) behavior on a browser

[hyf0]

It looks like the root cause is lacking of __ob__ on reactive object in SSR.

composition-api/src/reactivity/reactive.ts

Lines 118 to 121 in 2c342d5

	// in SSR, there is no __ob__. Mock for reactivity check
	if (!hasOwn(observed, '__ob__')) {
	def(observed, '__ob__', mockObserver(observed))
	}

This code only mock __ob__ on observed itself not include its children. Making it recursive could fix this issue, but I'm not sure it's a good solution.