Ignored `path`/`pathRoute` modifications after `transformer` apply

[Armanio]

I need to modify a path in a schema, but the transformation I apply in the function doesn't affect anything:

transformer(a) {
  a.route = '/123';
  a.pathRoute = '/123';
  return a;
},

But this works correctly

transformer(a) {
  delete a.summary
  return a;
},

Is it possible that this is how it is intended?
If this is a bug, feel free to assign it to me, I will fix this behavior. After all, I need it