Fixing slow line combiner: Charm_D0ToHHHH_BuilderD0ToKmPimPipPip_untight
New cuts to fix the slow 4-body combiner Charm_D0ToHHHH_BuilderD0ToKmPimPipPip_untight.
Solution: As was suggested before, tighter cuts in the daughter particles will fix it.
Discussed in the ci-test of a previous MR Moore!3011 and pointed out at: https://indico.cern.ch/event/1361612/contributions/5731740/attachments/2776490/4909844/RTA%20WP3%20news.pdf