From 0bd83eac951817e7abd84085af99617bfd2cab67 Mon Sep 17 00:00:00 2001
From: ferdymercury <ferdymercury@users.noreply.github.com>
Date: Tue, 29 Oct 2024 11:26:34 +0100
Subject: [PATCH] [hist] fix missing initialization in copy constructor

to avoid segviolation when calling copy-this
---
 hist/hist/src/TH2Poly.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/hist/hist/src/TH2Poly.cxx b/hist/hist/src/TH2Poly.cxx
index 009a63808bc22..1f96f43078e05 100644
--- a/hist/hist/src/TH2Poly.cxx
+++ b/hist/hist/src/TH2Poly.cxx
@@ -180,7 +180,8 @@ TH2Poly::TH2Poly(const char *name,const char *title,
 
 /////////////////////////////////////////////////////////////////////////////////
 /// Copy constructor
-TH2Poly::TH2Poly(const TH2Poly & rhs) : TH2() {
+TH2Poly::TH2Poly(const TH2Poly & rhs) : TH2(), fCells(nullptr),
+fIsEmpty(nullptr), fCompletelyInside(nullptr), fBins(nullptr) {
     rhs.Copy(*this);
 }