Client does not reauthenticate when token becomes invalid

[juliusknorr]

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Steps to reproduce

1. Connect the iOS app to a Nextcloud instance
2. Go the security settings and delete the app password of the client
3. Continue to use the client

Expected behaviour

The client asks to reauthenticate with login flow or at least show an error.
It should not send more requests to the server

Actual behaviour

The client continues to send requests which fail to authenticate with a 401, this then leads to brute force protection at some point.

Logs

If applicable, you can post the iOS app or server logs (removing any sensitive information).

Reasoning or why should it be changed/implemented?

Environment data

iOS version: 18.2.1

Nextcloud iOS app version: 6.2.3.1

Nextcloud server: daily

[juliusknorr]

As noted by @marinofaggiana this seems to only happen if the iOS app is in the background while revoking the password

[marinofaggiana]

@juliusknorr we will improve the NextclouKit routine ASAP