Login Flow unavailability treated as error against NC 14

[Delta-38]

Hi, sorry to bother you again, but I noticed that with the latest version even though Classic Login was in general fixed (Tested against Nextcloud 16) attempting to Log In with classic Login against a Nextcloud 14 installation fails.

Expected behaviour

Credentials should be accepted, and the user taken to the main view

Actual behaviour

An alert is shown with a 404 error. This appears to be caused by the lack of login flow support on NC14

Steps to reproduce

Attempt to Login with classic Login against a Nextcloud 14 server.

Reasoning or why should it be changed/implemented?

Either the server version check should show a warning for incompatible server versions (if this is the policy), or the legacy login approach should be kept available.

iOS version

13.3.1

App version

Testflight 2.26.0

Nextcloud version: (see Nextcloud admin page)
Nextcloud 14.0.8.2