Looping on many files, memory leak (RooFitResult)

Hi @wiso, thank you, I can reproduce the same behaviour, also in C++ with the equivalent code:

for (int i = 0; i < 10; i++) {
  for (auto &s : { "result_56159.471__seed_206498109__globals_obs_NONE.root", "result_56159.271__seed_1484912357__globals_obs_NONE.root" })  {
    TFile f(s);
    auto r = f.Get("fitResult"); // this is a RooFitResult
  }
}

An explicit delete works in the C++ case, will check how to free the object from Python.