From b382767a224f33411deb5d68adb8a76a95ae2f51 Mon Sep 17 00:00:00 2001
From: John Chapman <jchapman@cern.ch>
Date: Fri, 31 Mar 2023 12:31:59 +0200
Subject: [PATCH] FastChain: Legacy pile-up configuration should copy
 PileUpTruthParticles if present

---
 Tools/FullChainTransforms/share/FastChainSkeleton.EVGENtoRDO.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Tools/FullChainTransforms/share/FastChainSkeleton.EVGENtoRDO.py b/Tools/FullChainTransforms/share/FastChainSkeleton.EVGENtoRDO.py
index bbaad61546a0..718b07ec3114 100644
--- a/Tools/FullChainTransforms/share/FastChainSkeleton.EVGENtoRDO.py
+++ b/Tools/FullChainTransforms/share/FastChainSkeleton.EVGENtoRDO.py
@@ -951,6 +951,7 @@ if hasattr(runArgs,"preDigiInclude"):
 
 # Add TruthJet containers
 if DetFlags.Truth_on():
+    digitizationFlags.experimentalDigi += ['PileUpTruthParticles']
     digitizationFlags.experimentalDigi += ['PileUpAntiKt4TruthJets']
     digitizationFlags.experimentalDigi += ['PileUpAntiKt6TruthJets']
 
-- 
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