message: Fix streamer related crash when merging with TFileMerger
diff: @@ -26,7 +26,7 @@ class TRootIOCtor;
  #include "AliRecInfoCuts.h"
  #include "AliMCInfoCuts.h"
  -class AliPerformanceObject : public AliMergeable, public TNamed {
  +class AliPerformanceObject : public TNamed, public AliMergeable {
  public :
  AliPerformanceObject(TRootIOCtor*);
  AliPerformanceObject(const char* name="AliPerformanceObject", const char* title="AliPerformanceObject", Int_t run=-1, Bool_t highMult=kFALSE);
  @@ -155,7 +155,7 @@ protected:
  AliRecInfoCuts fCutsRC; // selection cuts for reconstructed tracks
  AliMCInfoCuts fCutsMC; // selection cuts for MC tracks
  - ClassDef(AliPerformanceObject,10);
  + ClassDef(AliPerformanceObject,11);
  };
  #endif
  