Crashfix in case pacs_prim are exported into .ig

code/nel/tools/3d/zone_dependencies/zone_dependencies.cpp

@@ -612,6 +612,10 @@ static void computeIGBBox(const NL3D::CInstanceGroup &ig, CLightingBBox &result,
 			{
 				nlwarning("Unable to find shape '%s'", it->Name.c_str());				
 			}
+			else if (toLower (CFile::getExtension (shapePathName)) == "pacs_prim")
+			{
+				nlwarning("EXPORT BUG: Can't read %s (not a shape), should not be part of .ig!", shapePathName.c_str());
+			}
 			else
 			{
 				CIFile shapeInputFile;