From 1b835da9f6eccd48b02166d222d353d899ecf309 Mon Sep 17 00:00:00 2001
From: mpv <mpv@opencascade.com>
Date: Tue, 26 Apr 2016 15:40:22 +0300
Subject: [PATCH] Fix for the issue #1418

---
 src/Model/Model_Update.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/Model/Model_Update.cpp b/src/Model/Model_Update.cpp
index 9125ca0f9..8886c5f02 100644
--- a/src/Model/Model_Update.cpp
+++ b/src/Model/Model_Update.cpp
@@ -80,7 +80,12 @@ bool Model_Update::addModified(FeaturePtr theFeature, FeaturePtr theReason) {
 #ifdef DEB_UPDATE
       std::cout<<"*** Add process on finish "<<theFeature->name()<<std::endl;
 #endif
-    updateArguments(theFeature);
+    static std::set<FeaturePtr> aCurrentlyUpdated;
+    if (aCurrentlyUpdated.find(theFeature) == aCurrentlyUpdated.end()) {
+      aCurrentlyUpdated.insert(theFeature);
+      updateArguments(theFeature);
+      aCurrentlyUpdated.erase(theFeature);
+    }
     if (theFeature->data()->execState() == ModelAPI_StateMustBeUpdated) {
       theFeature->data()->execState(ModelAPI_StateDone);
       static ModelAPI_ValidatorsFactory* aFactory = ModelAPI_Session::get()->validators();
-- 
2.39.2