unexpected unwrapping for tuple

### Version
3.0.11

### Reproduction link
[https://codesandbox.io/s/lively-flower-42igt?file=/index.ts](https://codesandbox.io/s/lively-flower-42igt?file=/index.ts)







### Steps to reproduce
see type

### What is expected?
tuple should not be unwrapped

### What is actually happening?
tuple is unwrapped