When exporting and importing "General settings" some settings are not preserved as they should be

[ierdnah]

Checklist

• I have used the search function to see if someone else has already submitted the same bug report.
• I will describe the problem with as much detail as possible.

App

K-9 Mail

App version

14

Where did you get the app from?

Google Play

Android version

no

Device model

SM-S926B/DS

Steps to reproduce

1. In the Settings menu, select "Display" and uncheck "Show contact names".
2. In the "Settings" menu press "Export settings" and save the file.
3. Uninstall K9 and reinstall it.
4. Open K9 and import the settings from the file exported at 1.
5. The setting "Show contact names" is checked.

Expected behavior

The setting "Show contact names" should not be checked.

Actual behavior

The setting "Show contact names" is checked.

Logs

No response

[ierdnah]

"Settings" -> "General settings" -> "Display" -> "Show Unified Inbox" is also not preserved between export and import settings.

[wmontwe]

I could replicate this issue.