Problem with JabRef's citations

To explain my problem, I’ll divide it into several steps:

1 - I open a “LibreOffice Writer” file

2 - I insert a reference with JabRef

3 - I place the cursor at the end of the reference

4 - I press the “space button”

=> Problem: The reference is extended, so I can’t add any text after the reference.

Capture d'écran

It looks like bug tdf#81720 has been re-opened.

After reading the bug report, you might like to also read this question for workarounds, Cannot exit the cross-reference