#3 Shadow logic segmentation fault

[yaya-hjb]

Debabrata Deb debabrata.deb at gmail dot com reported a segmentation fault in the following script

zap
set boundingbox false
load xyz InpFile2515.Animate0438.cnf
spacefill 100
color green
set shadow on
wireframe off
load xyz InpFile2515.Animate0005.cnf
spacefill 100
color yellow
set shadow on
wireframe off

Commenting out the set shadow on commands suppresses the failure.