Merge branch 'bugfixLongLived_21.0' into '21.0'

Protect SimFlags.specialConfiguration() access in sim jobs without an input file (21.0 branch)

See merge request atlas/athena!10677

Former-commit-id: 6f1c6214b404f0d697090f82b6e4d6cc331167ed

Simulation/ISF/ISF_HepMC/ISF_HepMC_Tools/python/ISF_HepMC_ToolsConfig.py

@@ -86,7 +86,7 @@ def getParticlePositionFilterDynamic(name="ISF_ParticlePositionFilterDynamic", *
 def getGenParticleInteractingFilter(name="ISF_GenParticleInteractingFilter", **kwargs):
     from G4AtlasApps.SimFlags import simFlags
     simdict = simFlags.specialConfiguration.get_Value()
-    if "InteractingPDGCodes" in simdict:
+    if simdict is not None and "InteractingPDGCodes" in simdict:
         kwargs.setdefault('AdditionalInteractingParticleTypes', simdict["InteractingPDGCodes"])
     return CfgMgr.ISF__GenParticleInteractingFilter(name, **kwargs)