message: fixed minor bug for FMD primaries.
diff: #include "AliStack.h"
  #include "AliMCEvent.h"
  #include "AliMCParticle.h"
  -//#include "AliForwardSecondariesTask.h"
  +
  using namespace std;
  ClassImp(AliForwardFlowRun2Task)
  #if 0
  @@ -247,7 +247,7 @@ void AliForwardFlowRun2Task::UserExec(Option_t *)
  if(!mcevent)
  throw std::runtime_error("Not MC as expected");
  - forwardDist = (fSettings.use_primaries ? &forwardPrim : &forwardTrRef);
  + forwardDist = (fSettings.use_primaries_fwd ? &forwardPrim : &forwardTrRef);
  if (fSettings.esd){
  if (fSettings.use_primaries_cen && fSettings.use_primaries_fwd){
  