Tighten the requirement of particles subject to quasi-stable sim
As discussed in: https://indico.cern.ch/event/844658/contributions/3546573/attachments/1905249/3146415/miham_2019_09_10.QS-Sim.pdf
We should change the
status != 3
requirement to
status < 3
to avoid pushing 'documentation' particles to quasi-stable simulation. One such example are photons with status 43, which have a vertex with zero-distance that just changes the status to 1. If they are subject to QS-simulation, the position of the vertex changes dramatically, because Geant4 does not handle particles with zero lifetime well.