Controller behaving differently for nested input, react-select

[kunal215-sortly]

Here is CSB: https://codesandbox.io/p/sandbox/react-hook-form-v7-ts-setvalue-forked-h759g3.

In my project's codebase, I want to set value of a controlled input from outside using setValue. I got to know from a discussion thread: #7758 that Controller internally subscribes to value updates happening to exact field name and hence, setting value without exact fieldName won't work. I found an exception when I included input element inside Controller (I know that input element can be treated as uncontrolled but wanted to give a try) and it is a nested field in form state.

Expectation: on clicking set button, formValues should have been updated and Controller shouldn't have given new value to nested input.
Current: on clicking set button, formValues got updated and Controller gives new value to input.

Expectation is still valid for Select component from React-Select which is also present as a nested field. Can anyone please help me with reasoning behind this strange behavior ?

Also, @bluebill1049 @Moshyfawn and other maintainers, Can you guys please help me in understanding why going ahead with exact field name's value update was decided for useController ?