message: Fix in testing B-field setting
diff: @@ -409,7 +409,7 @@ void AliAlgSteer::SetESDEvent(const AliESDEvent* ev)
  // setup magnetic field if needed
  if (fESDEvent &&
  (!TGeoGlobalMagField::Instance()->GetField() ||
  - Abs(fESDEvent->GetMagneticField()-AliTrackerBase::GetBz())>1e-4) ) {
  + !(Abs(fESDEvent->GetMagneticField()-AliTrackerBase::GetBz())>1e-4)) ) {
  fESDEvent->InitMagneticField();
  }
  }
  