JabRef version 3.8.2 on Windows 10

Editing keywords clears the fields priority, ranking, quality and relevance

Steps to reproduce:

Write values of special fields as separate fields to BiBTeX enabled!

1. Add a value to any of the fields: priority, ranking, quality and relevance
2. Edit the keyword field
3. Save or change focus from the keywords field in the entry editor

The fields priority, ranking, quality and relevance are now removed.

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