JabRef version

5.4 (latest release)

Operating system

Windows

Details on version and operating system

Windows 11

Checked with the latest development build

• I made a backup of my libraries before testing the latest development version.
• I have tested the latest development version and the problem persists

Steps to reproduce the behaviour

The deprecated fields tab is currently shown even though the fields don't contain any values.
In such a case, the tab shouldn't be shown.

Appendix

No response