I was wrong for thinking that there was a problem when
elements inside def elements were not written.
Actually, Cristina's commit
( 5e27d23d ) was correct
as elements inside defs don't have to be written at least
they're refered by <use> element, which isn't supported in Libo
right now. Working on implementing support for use element

Change-Id: Id0b8d8e9b27887f75cc961881daeb82089b2e62b
Reviewed-on: https://gerrit.libreoffice.org/20333Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Katarina Behrens <Katarina.Behrens@cib.de>
(cherry picked from commit f268e6f1)
Reviewed-on: https://gerrit.libreoffice.org/20484Reviewed-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>
Tested-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>