From 248404a0d16969f97a230d18da42d79d96775ac7 Mon Sep 17 00:00:00 2001
From: Seth Hillbrand <seth@kipro-pcb.com>
Date: Fri, 4 Aug 2023 13:58:11 -0700
Subject: [PATCH] Better fix for #15217

Rather than rely on a quirk, we avoid the modified structure

Fixes https://gitlab.com/kicad/code/kicad/-/issues/15217
---
 eeschema/connection_graph.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/eeschema/connection_graph.cpp b/eeschema/connection_graph.cpp
index 1f4a68a4f0..9be2545d17 100644
--- a/eeschema/connection_graph.cpp
+++ b/eeschema/connection_graph.cpp
@@ -2430,7 +2430,9 @@ void CONNECTION_GRAPH::propagateToNeighbors( CONNECTION_SUBGRAPH* aSubgraph, boo
     // member to have the correct connection info
     if( conn->IsBus() && !stale_bus_members.empty() )
     {
-        for( SCH_CONNECTION* stale_member : stale_bus_members )
+        std::unordered_set<SCH_CONNECTION*> cached_members = stale_bus_members;
+
+        for( SCH_CONNECTION* stale_member : cached_members )
         {
             for( CONNECTION_SUBGRAPH* subgraph : visited )
             {