From c91730dc7bfdc6a4bade5750e498f27a5a5b7055 Mon Sep 17 00:00:00 2001
From: Francis Dominic Fajardo <fofajardo@up.edu.ph>
Date: Tue, 24 Jun 2025 13:00:56 +0800
Subject: [PATCH] Issue #2488 - Follow-up: Ensure container is initialized for
 cloned declaration blocks

---
 layout/style/Declaration.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/layout/style/Declaration.cpp b/layout/style/Declaration.cpp
index 989e45765c..5d88feee26 100644
--- a/layout/style/Declaration.cpp
+++ b/layout/style/Declaration.cpp
@@ -79,6 +79,7 @@ Declaration::Declaration(const Declaration& aCopy)
         nullptr),
     mImmutable(false)
 {
+  mContainer.mRaw = 0;
 }
 
 Declaration::~Declaration()