message: Keep the ClassDef as it should be
diff: @@ -47,7 +47,7 @@ class AliDecayerPythia8 : public TVirtualMCDecayer {
  Decay_t fDecay; // Forced decay mode
  Bool_t fHeavyFlavour; //! Flag for heavy flavors
  static Bool_t fgInit; //! initialization flag
  - ClassDef(AliDecayerPythia8, 3) // Particle Decayer using Pythia8
  + ClassDef(AliDecayerPythia8, 2) // Particle Decayer using Pythia8
  };
  #endif
  