Stuck on loading screen after leaving SSO login to another instance

[fluxbug-flutter]

Steps to reproduce

1. Hold down on You
2. Add account
3. Connect to a different instance
4. Attempt to log in through SSO
5. Return to chat while in the middle of logging in
6. See issue

Expected behaviour

The app should normally return to the chat from the currently logged in instance

Actual behaviour

The app attempts to connect without any success to the alternative Fluxer instance

Client and system settings

Version 1.0.0, Beta 28, Channel Beta, Build 2100, Android 17 (arm64), Device Google Pixel 9a, Locale it-IT, Push unifiedpush, Flutter 3.44.4, Dart 3.12.2

Stances

Approvals

• Valid
• CR - bottom says the instance that you cancelled the SSO request on - Version 1.0.0, Beta 28, Channel Beta, Build 2100, Android 16 (arm64), Device samsung SM-A176B, Locale en-GB, Push unifiedpush, Flutter 3.44.4, Dart 3.12.2

Denials

None

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Reported: #1076