Role settings back button skips roles list and jumps back two levels in settings hierarchy

When editing a specific role's settings and tapping the back button, the app incorrectly jumps past the roles list and goes two steps back into the main community settings instead of returning to the previous roles list.

1. Go to Community settings and open Roles & permissions.

​2. Select any specific role (e.g., "Admin" or "SR Admin") to open its configuration. ​3. Tap the back button to return to the roles list.

4. ​Observe that the navigation skips the roles list entirely and lands two levels back.

Version 2026.10.100, Beta 3, Channel Beta, Build 622, Android 13 (arm64), Device Xiaomi 21061110AG, Locale en-US, Push fcm, Flutter 3.47.6, Dart 3.13.5