From b882defb28ed96d0bbbd81ef17899cb53bcbb4d8 Mon Sep 17 00:00:00 2001
From: JamesJCode <13408010-JamesJCode@users.noreply.gitlab.com>
Date: Thu, 6 Jun 2024 08:16:15 +0100
Subject: [PATCH] Update connectivity for SCH_LABELs if netclass field changed

Required for https://gitlab.com/kicad/code/kicad/-/issues/17797 fix
in 8.0. This was fixed in the rule area work in 8.99 but not
cherry-picked as it was wrapped up in the wider changes / bugfixes.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/17797
---
 eeschema/sch_label.cpp | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/eeschema/sch_label.cpp b/eeschema/sch_label.cpp
index 781512b854..98c7ecb9ae 100644
--- a/eeschema/sch_label.cpp
+++ b/eeschema/sch_label.cpp
@@ -1223,7 +1223,25 @@ bool SCH_LABEL_BASE::HasConnectivityChanges( const SCH_ITEM* aItem,
     if( GetPosition() != label->GetPosition() )
         return true;
 
-    return GetShownText( aInstance ) != label->GetShownText( aInstance );
+    if( GetShownText( aInstance ) != label->GetShownText( aInstance ) )
+        return true;
+
+    std::vector<wxString> netclasses;
+    std::vector<wxString> otherNetclasses;
+
+    for( const SCH_FIELD& field : m_fields )
+    {
+        if( field.GetCanonicalName() == wxT( "Netclass" ) )
+            netclasses.push_back( field.GetText() );
+    }
+
+    for( const SCH_FIELD& field : label->m_fields )
+    {
+        if( field.GetCanonicalName() == wxT( "Netclass" ) )
+            otherNetclasses.push_back( field.GetText() );
+    }
+
+    return netclasses != otherNetclasses;
 }