Using a wrapped v-bind object with .sync modifier produces a false-negative for "misses props:"

[thopiddock]

• I have searched through existing issues
• I have read through docs
• I have read FAQ
• I have tried restarting VS Code or running Vetur: Restart VLS

Info

• Platform: Windows 10
• Vetur version: 0.34.1
• VS Code version: 1.59.1 (System Setup)

Problem

When you pass the properties of an object with v-bind using .sync to automatically inject the properties for that object - Vetur produces a false-negative result:

Reproducible Case

https://github.com/thopiddock/vetur-v-bind-sync-missing-props-bug
Child component added with 2 properties (one required, one optional) is called with 4 styles of binding to show that Vetur produces a false-negative on the v-bind.sync statement to an object.

[thopiddock]

Dayum @yoyo930021 - you move quick! Nicely done!