POV 3.5 b 9 on PII 233 128 MB with NT 4 Sp 6

checking fix of "Bug with intersection stack (job000175) I found following
script causes crash:

#local S=sphere{0,1};
#local N=<0,0,0>;
global_settings{max_intersections 0}
#local I=trace(S,2*x,-x,N);

Any confirmation ?

ABX
--
#declare _=function(a,b,x){((a^2)+(b^2))^.5-x}#default {pigment{color rgb 1}}
union{plane{y,-3}plane{-x,-3}finish{reflection 1 ambient 0}}isosurface{ //ABX
function{_(x-2,y,1)&_((x+y)*.7,z,.1)&_((x+y+2)*.7,z,.1)&_(x/2+y*.8+1.5,z,.1)}
contained_by{box{<0,-3,-.1>,<3,0,.1>}}translate z*15finish{ambient 1}}//POV35

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