anchor.diff:        # supports default python.logging levels
         # LOGLEVEL="INFO";
         preFixup = phraseSolutions solutions unresholved;
  +
  +      # don't break the metadata...
  +      meta = unresholved.meta;
       });
   }
  
positive.code:       */
        unresholved = (stdenv.mkDerivation ((removeAttrs attrs [ "solutions" ])
          // {
          inherit pname version src;
        }));
      in
      /*
  
negative.code:     */
      lib.extendDerivation true passthru (stdenv.mkDerivation {
        src = unresholved;
        inherit version pname;
        buildInputs = [ resholve ];
  
        # retain a reference to the base
  