From 8c24070c8529166f616747e966cdd9afd735ff9e Mon Sep 17 00:00:00 2001
From: Pavel Sanda <sanda@lyx.org>
Date: Wed, 10 Jan 2018 10:47:48 +0100
Subject: [PATCH] RCS: commit undo allowed only in unlocked state.

---
 src/VCBackend.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/VCBackend.cpp b/src/VCBackend.cpp
index edbf096e75..957c69f585 100644
--- a/src/VCBackend.cpp
+++ b/src/VCBackend.cpp
@@ -392,7 +392,7 @@ void RCS::undoLast()
 
 bool RCS::undoLastEnabled()
 {
-	return true;
+	return owner_->hasReadonlyFlag();
 }
 
 
-- 
2.39.2