From b06f1e4f71ff65530be332bf846a23a0006c3353 Mon Sep 17 00:00:00 2001
From: mpv <mpv@opencascade.com>
Date: Fri, 2 Oct 2020 15:20:25 +0300
Subject: [PATCH] FIx for EDF 22041 - Salome freezes when updating data

---
 src/Model/Model_Update.cpp | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/Model/Model_Update.cpp b/src/Model/Model_Update.cpp
index a0dfe058a..9127a9915 100644
--- a/src/Model/Model_Update.cpp
+++ b/src/Model/Model_Update.cpp
@@ -190,13 +190,14 @@ bool Model_Update::addModified(FeaturePtr theFeature, FeaturePtr theReason) {
 #endif
   }
   // clear processed and fill modified recursively
+  std::set<FeaturePtr> aRefSet;
   const std::set<std::shared_ptr<ModelAPI_Attribute> >& aRefs = theFeature->data()->refsToMe();
   std::set<std::shared_ptr<ModelAPI_Attribute> >::const_iterator aRefIter = aRefs.cbegin();
   for(; aRefIter != aRefs.cend(); aRefIter++) {
     if ((*aRefIter)->isArgument()) {
       FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRefIter)->owner());
       if (aReferenced.get()) {
-        addModified(aReferenced, theFeature);
+        aRefSet.insert(aReferenced);
       }
     }
   }
@@ -211,19 +212,21 @@ bool Model_Update::addModified(FeaturePtr theFeature, FeaturePtr theReason) {
       if ((*aRIter)->isArgument()) {
         FeaturePtr aReferenced = std::dynamic_pointer_cast<ModelAPI_Feature>((*aRIter)->owner());
         if (aReferenced.get()) {
-          addModified(aReferenced, theFeature);
+          aRefSet.insert(aReferenced);
         }
       }
     }
   }
-
   // also add part feature that contains this feature to the modified
   if (theFeature->document()->kind() != "PartSet") {
     FeaturePtr aPart = ModelAPI_Tools::findPartFeature(
       ModelAPI_Session::get()->moduleDocument(), theFeature->document());
     if (aPart.get())
-      addModified(aPart, theFeature);
+      aRefSet.insert(aPart);
   }
+  for(std::set<FeaturePtr>::iterator aRef = aRefSet.begin(); aRef != aRefSet.end(); aRef++)
+    addModified(*aRef, theFeature);
+
   return true;
 }
 
-- 
2.39.2