useQuery: skip does not stop polling.

[phryneas]

@phryneas I could narrow it a little bit down:

• It seems that in my case the problem appears when combined with polling. In my case the 1st call should not skip but later ones should. It looks like the polling ignores the skip property.
• It seems that this was introduced in 3.7.11. Below is a small repro. The logs and the network requests show that the requests are fired even though skip is true. When switching to 3.7.10, the requests are not fired.

https://codesandbox.io/s/skip-does-not-work-forked-sdr7d2?file=/src/App.js

Originally posted by @tobiaswaltl in #6190 (comment)

Additionally, setting pollInterval to undefined doesn't seem to help:

As a workaround I tried to set the pollInterval to undefined when the condition for skip evaluates to true. But, like skip, this is ignored and the polling is continued. I.e. it seems it's nothing skip-specific causing this bug.

[phryneas]

Probably related: #9431

[andreimatei]

I have also run into both problems mentioned here:

1. changing the value of skip does not have the intended effect
2. changing the value of pollInterval to undefined does not have the intended effect (*)

Should we leave the two problems bundled together in this issue, or create a new one for the second?

(*) however, changing the value of pollInterval to a really large number does work