Field finder combobox doesn't work in "Clean up" dialog

[InAnYan]

JabRef version

Latest development branch build (please note build date below)

Operating system

GNU / Linux

Details on version and operating system

Arch

Checked with the latest development build (copy version output from About dialog)

• 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

1. Open "Clean up" dialog
2. Find a key for a field formatter, e.g. "Title"
3. Start typing "T" then "i"

The items in combobox are not filtered

Appendix

No response

[Siedlerchr]

This also applies to other dialogs. For Example Custom Entry Types does not support this either. There is SearchableCombobox from controsfx we use in AI chat tab

[bhrhmn]

/assign-me

[github-actions]

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