message: delete fTrksToSkip if it was already allocated (C.Mayer)
diff: @@ -1131,6 +1131,7 @@ void AliVertexerTracks::SetSkipTracks(Int_t n,const Int_t *skipped)
  // Mark the tracks not to be used in the vertex reconstruction.
  // Tracks are identified by AliESDtrack::GetID()
  //
  + delete[] fTrksToSkip;
  fNTrksToSkip = n; fTrksToSkip = new Int_t[n];
  for(Int_t i=0;i<n;i++) fTrksToSkip[i] = skipped[i];
  return;
  