ProgrammableGlyphFilter does not work when source is updated in the glyph method
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
User reported that the ProgrmmableGlyphFilter is not working as expected: http://vtk.1045678.n5.nabble.com/Problem-with-the-programmableGlyphFilter-td5714916.html
Upon investigation, the filter does not work properly if the GlyphMethod changes the source of the glyph filter.