Problem 893

When running TestEm17 example program from
examples/extended/electromagnetic/TestEm17 using the provided munucl.mac, it
crashed when processing the first event. The other available macros all work
fine. I did not make any changes to the original code.

The backtrace from gdb is:

#0  0xb66e6a94 in G4DynamicParticle::SetDefinition ()
   from /usr/lib/geant4/libG4partman-4.8.so.2
#1  0xb6df79fd in G4HEInelastic::FillParticleChange ()
   from /usr/lib/geant4/libG4hadronic_HE-4.8.so.2
#2  0xb6e3975b in G4HEPionMinusInelastic::ApplyYourself ()
   from /usr/lib/geant4/libG4hadronic_HE-4.8.so.2
#3  0xb6f222c8 in G4ParametrizedHadronicVertex::ApplyYourself ()
   from /usr/lib/geant4/libG4had_muon_nuclear-4.8.so.2
#4  0xb6f1c7dc in G4MuNuclearInteraction::PostStepDoIt ()
   from /usr/lib/geant4/libG4had_muon_nuclear-4.8.so.2
#5  0xb69d8214 in G4SteppingManager::InvokePSDIP ()
   from /usr/lib/geant4/libG4tracking-4.8.so.2
#6  0xb69d858c in G4SteppingManager::InvokePostStepDoItProcs ()
   from /usr/lib/geant4/libG4tracking-4.8.so.2
#7  0xb69d5576 in G4SteppingManager::Stepping ()
   from /usr/lib/geant4/libG4tracking-4.8.so.2
#8  0xb69dd38a in G4TrackingManager::ProcessOneTrack ()
   from /usr/lib/geant4/libG4tracking-4.8.so.2
#9  0xb6a17d5c in G4EventManager::DoProcessing ()
   from /usr/lib/geant4/libG4event-4.8.so.2
#10 0xb6a1813b in G4EventManager::ProcessOneEvent ()
   from /usr/lib/geant4/libG4event-4.8.so.2
#11 0xb6d71250 in G4RunManager::DoEventLoop () from
/usr/lib/geant4/libG4run-4.8.so.2
#12 0xb6d708b1 in G4RunManager::BeamOn () from /usr/lib/geant4/libG4run-4.8.so.2
#13 0xb6d7898e in G4RunMessenger::SetNewValue ()
   from /usr/lib/geant4/libG4run-4.8.so.2
#14 0xb65d5d27 in G4UIcommand::DoIt () from /usr/lib/geant4/libG4intercoms-4.8.so.2
#15 0xb65e182d in G4UImanager::ApplyCommand ()
   from /usr/lib/geant4/libG4intercoms-4.8.so.2
#16 0xb65c48d7 in G4UIbatch::SessionStart ()
---Type <return> to continue, or q <return> to quit---
   from /usr/lib/geant4/libG4intercoms-4.8.so.2
#17 0xb65dfbff in G4UImanager::ExecuteMacroFile ()
   from /usr/lib/geant4/libG4intercoms-4.8.so.2
#18 0xb65dd83f in G4UIcontrolMessenger::SetNewValue ()
   from /usr/lib/geant4/libG4intercoms-4.8.so.2
#19 0xb65d5d27 in G4UIcommand::DoIt () from /usr/lib/geant4/libG4intercoms-4.8.so.2
#20 0xb65e182d in G4UImanager::ApplyCommand ()
   from /usr/lib/geant4/libG4intercoms-4.8.so.2
#21 0xb65e1a97 in G4UImanager::ApplyCommand ()
   from /usr/lib/geant4/libG4intercoms-4.8.so.2
#22 0x0804fab2 in main (argc=2, argv=0x0) at TestEm17.cc:96