From 952ada554ae86a3df376a23477b8f616006bb8dd Mon Sep 17 00:00:00 2001
From: heckflosse <heckflosse67@gmx.de>
Date: Thu, 14 Sep 2017 17:13:45 +0200
Subject: [PATCH] Preview not updating properly when going back in history with
 LCP vignetting correction, fixes #4073

---
 rtgui/paramsedited.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rtgui/paramsedited.cc b/rtgui/paramsedited.cc
index 7c32265d9..aa3c21256 100644
--- a/rtgui/paramsedited.cc
+++ b/rtgui/paramsedited.cc
@@ -3053,7 +3053,7 @@ bool RAWParamsEdited::isUnchanged() const
 
 bool LensProfParamsEdited::isUnchanged() const
 {
-    return lcpFile;
+    return lcpFile && useVign && lfLens;
 }
 
 bool RetinexParamsEdited::isUnchanged() const