Peculiar behaviors when deleting the offline map

[mikewilburn]

On WPF:

If you delete the currently-stored offline map, the application will throw an I/O exception like this one:

Clicking 'OK' successfully restarts the app and reveals the offline map is indeed deleted.

However, attempting to take offline a new section of map throws this same exception. The behavior loops and I haven't figured out how to work offline yet because of it.

On UWP:

If you delete the offline map, the application will crash right away.

The application can be re-launched just fine and reveals the offline map is indeed deleted, but on a few occasions, I've been re-prompted to sign in. Seems the crash may also force signing out the user?

[mikewilburn]

Deleting the offline map is now throwing this error:

WPF	UWP

Clicking 'OK' and attempting to re-log-in (ensuring I've used the correct credentials) throws the error:

Map Failed to Load: Response status code does not indicate success: 401 (Unauthorized)

Moreover, I'm still apparently logged in and have an offline map:

CLICK TO EXPAND

[nCastle1]

The remaining errors are a result of an authentication manager bug involving OAuth refresh tokens that is resolved at 100.7. This issue should be resolved by #84

[mikewilburn]

@nCastle1 do we need to re-test to ensure that this one was resolved when #84 was merged?

[nCastle1]

@mikewilburn Yes, I think additional testing would be in order to confirm that this is fixed.