From e73048bf98db857361e5ee1bbb8a4d273f10550a Mon Sep 17 00:00:00 2001
From: Jeff Young <jeff@rokeby.ie>
Date: Sun, 19 Nov 2023 23:33:10 +0000
Subject: [PATCH] Only set modified if it's an old file.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/16113
---
 eeschema/files-io.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/eeschema/files-io.cpp b/eeschema/files-io.cpp
index c575363b57..ae36434aa3 100644
--- a/eeschema/files-io.cpp
+++ b/eeschema/files-io.cpp
@@ -491,8 +491,11 @@ bool SCH_EDIT_FRAME::OpenProjectFiles( const std::vector<wxString>& aFileSet, in
             for( SCH_SCREEN* screen = schematic.GetFirst(); screen; screen = schematic.GetNext() )
                 screen->MigrateSimModels();
 
-            // Allow the schematic to be saved to new file format without making any edits.
-            OnModify();
+            if( schematic.GetFirst()->GetFileFormatVersionAtLoad() < SEXPR_SCHEMATIC_FILE_VERSION )
+            {
+                // Allow the schematic to be saved to new file format without making any edits.
+                OnModify();
+            }
         }
 
         Schematic().ConnectionGraph()->Reset();