From a5ebabbb9903a2eef8706f57bf09f35fd1095298 Mon Sep 17 00:00:00 2001
From: Juergen Spitzmueller <spitz@lyx.org>
Date: Tue, 13 Dec 2016 07:30:40 +0100
Subject: [PATCH] speed up lyx2lyx reversion for non-Hebrew documents

---
 lib/lyx2lyx/lyx_2_3.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/lyx2lyx/lyx_2_3.py b/lib/lyx2lyx/lyx_2_3.py
index a45c8577fa..d3f3d409be 100644
--- a/lib/lyx2lyx/lyx_2_3.py
+++ b/lib/lyx2lyx/lyx_2_3.py
@@ -557,6 +557,9 @@ def revert_quotes(document):
             continue
 
     # Now handle Hebrew
+    if not document.language == "hebrew" and find_token(document.body, '\\lang hebrew', 0) == -1:
+        return
+
     i = 0
     j = 0
     while True:
-- 
2.39.2