From 6eccba7398e720151f8f2dfaeaf162a5009a7edb Mon Sep 17 00:00:00 2001
From: Gaute Lindkvist <lindkvis@gmail.com>
Date: Thu, 28 Nov 2019 20:43:49 +0100
Subject: [PATCH] Fix crash when dragging plot from one multiplot to another

---
 .../ProjectDataModel/RimMultiPlotWindow.cpp           | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/ApplicationCode/ProjectDataModel/RimMultiPlotWindow.cpp b/ApplicationCode/ProjectDataModel/RimMultiPlotWindow.cpp
index 120646f718..1e9e4ac2f8 100644
--- a/ApplicationCode/ProjectDataModel/RimMultiPlotWindow.cpp
+++ b/ApplicationCode/ProjectDataModel/RimMultiPlotWindow.cpp
@@ -195,7 +195,16 @@ void RimMultiPlotWindow::movePlotsToThis( const std::vector<RimPlot*>& plotsToMo
 {
     for ( size_t tIdx = 0; tIdx < plotsToMove.size(); tIdx++ )
     {
-        plotsToMove[tIdx]->removeFromMdiAreaAndCollection();
+        RimMultiPlotWindow* previousMultiPlotWindow = nullptr;
+        plotsToMove[tIdx]->firstAncestorOrThisOfType( previousMultiPlotWindow );
+        if ( previousMultiPlotWindow )
+        {
+            previousMultiPlotWindow->removePlot( plotsToMove[tIdx] );
+        }
+        else
+        {
+            plotsToMove[tIdx]->removeFromMdiAreaAndCollection();
+        }
     }
 
     size_t insertionStartIndex = 0;