Ref sugar (take2) in Typescript return incorrect type checking

[TrungRueta]

Version

3.2.8

Reproduction link

github.com

Steps to reproduce

• Please see file App.vue in component folder
• compare variable [a] with type null | boolean
• compare variablt [b] with type null | { ok:boolean }

from vscode, ctrl + space at a and b variable to see how it explains type.

What is expected?

ref surgar $ref | $computed should be reference correct type checking in case type is object

What is actually happening?

• $ref | $computed return correct union type checking in case type is primative but lost type null | undefined in case union type has type object

correct if : $ref<null | boolean> --> refValue<null | boolean>
failed if $ref<null | { ok: boolean }> --> refValue<{ ok : boolean }>

correct variable a with primative

incorrect variable b with object

[edison1105]

already fixed via 815bfcf, not release yet.

[yyx990803]

duplicate of #4499