make it a little smarter in dealing with fields that are smart pointers Change-Id: I44072105170882dc29fb19558f1065cffc7e5f11 Reviewed-on: https://gerrit.libreoffice.org/37751 Tested-by: Jenkins <ci@libreoffice.org> Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>