glu/sgi: Initialize members of class Curvelist.
diff --git a/src/glu/sgi/libnurbs/internals/curvelist.cc b/src/glu/sgi/libnurbs/internals/curvelist.cc
index da04eff..8f2ee46 100644
--- a/src/glu/sgi/libnurbs/internals/curvelist.cc
+++ b/src/glu/sgi/libnurbs/internals/curvelist.cc
@@ -59,16 +59,17 @@
 
 Curvelist::Curvelist( Curvelist &upper, REAL value )
 {
-    Curvelist &lower = *this;
     curve = 0;
     for( Curve *c = upper.curve; c; c = c->next )
 	curve = new Curve( *c, value, curve );
 
-    lower.range[0] = upper.range[0];
-    lower.range[1] = value;
-    lower.range[2] = value - upper.range[0];
+    range[0] = upper.range[0];
+    range[1] = value;
+    range[2] = value - upper.range[0];
     upper.range[0] = value;
     upper.range[2] = upper.range[1] - value;
+    needsSubdivision = 0;
+    stepsize = 0;
 }
 
 Curvelist::~Curvelist()