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GeoModelCore/GeoModelKernel/src/GeoMaterial.cxx

@@ -229,7 +229,6 @@ void GeoMaterial::add (const GeoElement* element, double fraction)
   if (e==m_elements.end()) {
     m_elements.push_back (elementPtr);
     m_fractions.push_back (fraction);
-    element->ref ();
   }
   else {
     int n = e-m_elements.begin();