Data is not re-validated on error with suspense: true

[cinan]

Bug report

Description / Observed Behavior

Data is not re-validated on a component mount if fetcher throws an error and suspense config is on.

Expected Behavior

Re-validating behaviour should be the same with suspense: true or suspense: false.

Repro Steps / Code Example

https://codesandbox.io/s/vigilant-worker-dr5so?file=/src/App.js

Click on "Toogle fetch component". This will mount the component using swr and throw an error (as expected). Then, double click on the button to remount the component. In Devtools network log I can see network calls are missing when component is re-mounted.

With suspense: false the scenario causes data re-validation on every remount (in Network log I can see a new network call when component is re-mounted.

Additional Context

SWR version: 0.3.0

[promer94]

If there is an error in the cache,
swr will throw the error immediately in suspense mode
and it will not trigger useEffect hooks in the swr.

So swr wont re-validated with errored cache in suspense mode.

You can find a workaroud in #160