Fixed a bug causing gfx modify command not working in some cases. https://tracker.physiomeproject.org/show_bug.cgi?id=3260
Fixed a bug causing gfx modify command not working in some cases. https://tracker.physiomeproject.org/show_bug.cgi?id=3260

hsorby/zinc,hsorby/zinc,hsorby/zinc,OpenCMISS/zinc,OpenCMISS/zinc,OpenCMISS/zinc,OpenCMISS/zinc,hsorby/zinc