From 33b6d931a295518c9d5310dd041eebf4dc39c315 Mon Sep 17 00:00:00 2001
From: nds <nds@opencascade.com>
Date: Thu, 19 May 2016 17:12:58 +0300
Subject: [PATCH] Issue #1495 Not possible to validate the sketch after undo

---
 src/XGUI/XGUI_OperationMgr.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/XGUI/XGUI_OperationMgr.cpp b/src/XGUI/XGUI_OperationMgr.cpp
index 7b1a4e14d..3a98d98e9 100644
--- a/src/XGUI/XGUI_OperationMgr.cpp
+++ b/src/XGUI/XGUI_OperationMgr.cpp
@@ -284,6 +284,8 @@ void XGUI_OperationMgr::updateApplyOfOperations(ModuleBase_Operation* theOperati
         updateApplyOfOperations(anOperation);
     }
   }
+  // Apply button of the current operation should also be updated
+  onValidateOperation();
 }
 
 bool XGUI_OperationMgr::canStopOperation(ModuleBase_Operation* theOperation)
-- 
2.39.2