Customized general fields are not imported

[jpschneiders]

JabRef version JabRef 5.2--2020-12-01--706865f on Windows 10

• Mandatory: I have tested the latest development version from http://builds.jabref.org/master/ and the problem persists

Steps to reproduce the behavior:

1. Export preferences with customized general fields from a JabRef instance.
2. Import these preferences (an example is joined to this report as text file 2020_Pref_Jabref.txt ) in a new JabRef instance.
3. The customized general fields are not imported along the other customizations.

[github-actions]

This issue has been inactive for half a year. Since JabRef is constantly evolving this issue may not be relevant any longer and it will be closed in two weeks if no further activity occurs.

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