Prevent new calls that won't work as expected

vacuum_gambit.p8

@@ -41,12 +41,13 @@ function mknew(tt)
  local mt,oldinit,more = {__index=tt},tt.superinit,rawget(tt, "init")
  tt.new=function(ret)
   if(not ret) ret = {}
+  ret.new = false
   setmetatable(ret, mt)
   if(oldinit) oldinit(ret)
   if (more) more(ret)
   return ret
  end
- 
+
  if oldinit and more then
   tt.superinit = function(ret)
    oldinit(ret)