BibTex editor does not update after autogenerate BibTex key

[GeorgLink]

Reproduce misbehavior:

1. Edit any BibTex entry.
2. In the Required fields tab, delete the Bibtexkey.
3. Use function Autogenerate BibTex keys.
4. Switch to tab BibTex source and there will be no key.
5. Select a different BibTex entry and return to the original one: now the key is shown.

[Joeran]

just as a general note: many of the JabRef Bugs might become obsolete if we integrate the latest JabRef version into Docear (currently, we are using a rather old version). However, integrating the latest version would take quite a bit of time (we made a lot of adjustments to the source code of JabRef when integrating it)