Extra style is causing editing problem near footnote/endnote
references. This behavior is a side effect of
eaa9cf6a, allowing emission
of these "technical" styles.

Change-Id: I1885b92814746e7b5cd19f3ddd7bc22eb691615e
Reviewed-on: https://gerrit.libreoffice.org/68304
Tested-by: Jenkins
Reviewed-by: Thorsten Behrens <Thorsten.Behrens@CIB.de>