Remove ParticleCombiner="ParticleAdder" flag if not needed
Due to a bug in ParticleVertexFitter decay descriptors of the type
X --> Y Z
with
Y --> resonance gamma/pi0 would lead to unnecessary run-time errors of ParticleVertexFitter. Line implementers circumvented the bug by using ParticleAdder in place of ParticleVertexFitter. The disadvantage of that is that pv association, chi2 cuts, lifetime cuts etc do not work properly. This merge requests fixed configurations with ParticleCombiner="ParticleAdder" if they are not needed.
Edited by Sevda Esen