User list presented after logging out can be dismissed, leaving app in an uncertain state

[mattlacey]

Please fill out the following details:

1. Version of Mobile SDK Used: 11.1
2. Issue found in Native App or Hybrid App: Hybrid (custom build)
3. OS Version: 17.0.1
4. Device: iPhone 13 Max
5. Steps to reproduce:

a. Have multiple users signed in, and sign out as one user.

In our hybrid UI we have a logout button that invokes the following Swift code:

        guard let account = UserAccountManager.shared.currentUserAccount else { return }
        UserAccountManager.shared.logout(account)
        PushNotificationManager.sharedInstance().unregisterForSalesforceNotifications(user: account) { result in }

b. The SDK then presents the user list in response to this
c. Swipe down to dismiss the user list - the app receives no notification that this has happened, but there is now no current user.

6. Actual behavior: App is left in an uncertain state
7. Expected Behavior: User list should not be cancelable (or swipable) when there is no current user
8. Error Log: None

Further context: We use a custom user list most of the time, and in there it was reasonably trivial to prevent it being swiped away when there is no current user. I now ensure that's visible right after calling the logout code above - but the user list in the mobile SDK should probably do something similar and not allow it to be cancelled when there is no current user.

[bbirman]

@mattlacey, thanks for reporting, adding a bug to our backlog