Friendica: OAuth login not possible

[kr428]

What happened?

Installed the latest weekly (2023-42.1) on Android and tried to add my Friendica account (loma.ml). Redirect to the browser worked, but login wasn't possible, all I ended up with was an error claiming that "entity could not be processed". This somehow relates to earlier issues in other applications (andstatus/andstatus#569).

Expected behavior

Login in the browser should walk through the usual auth workflow and redirect to the app with a valid token.

How to reproduce

1. Install named nightly.
2. Try to connect to a Friendica instance (tested venera.social and loma.ml here).

What platform are you seeing the issue on?

Android

[Craftplacer]

Friendica is unsupported and this seems like a backend issue with Friendica, not Kaiteki.