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GeneratorFilters: protect xAOD filters aginst barcode zero and duplicated particles

Ewelina Maria Lobodzinska requested to merge ewelina/athena:main-xaod-filter into main

GeneratorFilters: protect xAOD filters aginst barcode zero and duplicated particles It was observed recently, that when EvtGen is used in MC production some barcode=0 or duplicated particles appear in the TruthParticle container. This merge request protect the filters against these particles. Since all xAOD filters are affected the MR is rather big, but the changes are similar in all files.

It is rather urgent as we have 2 production requests using xAOD filters waiting for a new release with this fix.

In addition Powheg version is increased to 06-04.

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