Hatch without a hatch name was exported to nothing. Powerpoint load that as solid color. So in that case we export the default hatch data. Did not expose `PROP_FILL_HATCH` as it was not needed for the fix But added code to handle that case too if it will be exposed. Signed-off-by: Attila Szűcs <attila.szucs@collabora.com> Change-Id: Iec1a850b7b08db8d42de3770d5d81b7f77a905c4 Reviewed-on: https://gerrit.collaboraoffice.com/c/online/+/12642 Reviewed-by: Stephan Bergmann <stephan.bergmann@collabora.com> Tested-by: Jenkins CPCI <releng@collaboraoffice.com> (cherry picked from commit 6a2288a5994faed380c45221cdff25181570e23a) Reviewed-on: https://gerrit.libreoffice.org/c/core/+/211578 Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org> Tested-by: Jenkins