isLoading, isValidating always returns true when fallbackData is set

[MateuszPaulski]

Bug report

Description / Observed Behavior

isLoading / isValidating values are incorrect when fallback or fallback data is set and can cause infinite loading issue after disabling revalidation options.

Expected Behavior

IsLoading and isValidation should be only set to true when there is ongoing request:

isValidating becomes true whenever there is an ongoing request whether the data is loaded or not
isLoading becomes true when there is an ongoing request and data is not loaded yet.

in the case below we dont have ongoing requests and we have data loaded (from fallback) so isLoading and isValidating values should be false.

Repro Steps / Code Example

https://codesandbox.io/s/cranky-wright-xg4kpv?file=/src/App.js

Additional Context

SWR version.
2.0.1