Fix NURBS when data is retrieved from stencil.
Fix NURBS when data is retrieved from stencil.

Normally, we have to add a few extra things to the data that are stored in a separate chunk but because stencils have already been parsed and already had this done, there is no need to do it again in the collector.

sdteffen/libvisio,LibreOffice/libvisio,sdteffen/libvisio,LibreOffice/libvisio,LibreOffice/libvisio,sdteffen/libvisio,sdteffen/libvisio