From 46def65b446dd0803fcdc1a1c88cd6264382c82d Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Sun, 30 Sep 2018 15:21:11 +0200
Subject: [PATCH] make DAG view behave more nicely in case of cyclic graphs

---
 src/Gui/DAGView/DAGModel.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Gui/DAGView/DAGModel.cpp b/src/Gui/DAGView/DAGModel.cpp
index 608f12e36b..574843dc48 100644
--- a/src/Gui/DAGView/DAGModel.cpp
+++ b/src/Gui/DAGView/DAGModel.cpp
@@ -552,6 +552,8 @@ void Model::updateSlot()
   catch(const boost::not_a_dag &)
   {
     Base::Console().Error("not a dag exception in DAGView::Model::updateSlot()\n");
+    //do not continuously report an error for cyclic graphs
+    graphDirty = false;
     return;
   }
   //index the vertices in sort order.