From dfab2898de3a63f7ccb0144098846fda7008ebd7 Mon Sep 17 00:00:00 2001
From: Juergen Spitzmueller <spitz@lyx.org>
Date: Fri, 21 Jul 2023 09:46:47 +0200
Subject: [PATCH] Fix lyx2lyx reversion problem for covington examples

Do not take arguments of nested insets/layouts as your own
---
 lib/lyx2lyx/lyx_2_4.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/lyx2lyx/lyx_2_4.py b/lib/lyx2lyx/lyx_2_4.py
index 33bf92c5c9..6e4bdbb362 100644
--- a/lib/lyx2lyx/lyx_2_4.py
+++ b/lib/lyx2lyx/lyx_2_4.py
@@ -5296,6 +5296,9 @@ def revert_exarg2(document):
                      continue
 
             arg = find_token(document.body, "\\begin_inset Argument 1", i, l)
+            if arg != -1 and layouttype != "\\begin_layout " + get_containing_layout(document.body, arg)[0]:
+                 # this is not our argument!
+                 arg = -1
             if subexpl or arg == -1:
                 iarg = find_token(document.body, "\\begin_inset Argument item:1", i, l)
                 if iarg == -1: