Android back button exits editor without saving changes in Nextcloud Text

[1984mans]

⚠️ Before posting ⚠️

• This is a bug, not a question or an enhancement.
• I've searched for similar issues and didn't find a duplicate.
• I've written a clear and descriptive title for this issue, not just "Bug" or "Crash".
• I agree to follow Nextcloud's Code of Conduct.

Steps to reproduce

1. Open a Markdown or text document in Nextcloud Text on an Android device.
2. Edit the document.
3. Press the Android system back button to leave the editor.

Expected behaviour

Pressing the Android back button should either:

• Trigger the same save-and-close behavior as the editor “X” close button, or
• Show a warning dialog indicating that there are unsaved changes.

Ideally, the back button should behave consistently with the editor UI close action.

Actual behaviour

• The editor closes immediately when pressing back button.
• Recent edits are not always saved and file mtime doesn't change ever.
• No warning about unsaved changes is shown.
• The document reopens sometimes with the correct content and other times with the previous content.
• Using the “X” close button correctly saves the document.

Android version

16

Device brand and model

Samsung S24 Exynos

Stock or custom OS?

Stock

Nextcloud android app version

33.0.1

Nextcloud server version

32.0.16

Using a reverse proxy?

No

Android logs

No response

Server error logs

Additional information

No response