google / google/GoogleSignIn-iOS

Remove Access To App For Google SSO on Settings isn't working as expected.

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Description

Hello, I am seeing an issue when I try to Remove Access To our app for Google SSO on Settings page(i.e. [link](https://myaccount.google.com/permissions?continue=https%3A%2F%2Fmyaccount.google.com%2Fdata-and-privacy)).

**Here is what i did:**
1.) Sign in with Google SSO on my app.
2.) Put my app to background or killed the app.
3.) Sign in to google on browser with the same gmail account i used in step 1 & Go to Data & Privacy Page(i.e. [link](https://myaccount.google.com/permissions?continue=https%3A%2F%2Fmyaccount.google.com%2Fdata-and-privacy))
4.) Remove access for my app in Data & Privacy Page(i.e. [link](https://myaccount.google.com/permissions?continue=https%3A%2F%2Fmyaccount.google.com%2Fdata-and-privacy))
5.) Get my App to Foreground or Relaunching the app.
6.) During App coming to Foreground or Relaunch, In didFinishLaunchingWithOptions of App Delegate, I do check for `GIDSignIn.sharedInstance.restorePreviousSignIn` to see if Google SSO tokens are still valid.
7.) GIDSignIn.sharedInstance.restorePreviousSignIn returns that the **google sso idTokens** are **still valid** for my app, in my case it shouldn't be as I removed access for my app.

**Conclusion:**
I think this should be the correct behavior, `GIDSignIn.sharedInstance.restorePreviousSignIn` should return **error** or **nil user** when user removes access for an app and tries to `GIDSignIn.sharedInstance.restorePreviousSignIn `, because that is how it worked for Apple & Facebook SSO.

Would love to hear your thoughts or feedback on this, Thank you!.

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