From 01a343f28ebcfd9cd173886dd3a199cdc89ab28e Mon Sep 17 00:00:00 2001
From: Jeff Young <jeff@rokeby.ie>
Date: Fri, 5 Jul 2019 02:23:26 +0100
Subject: [PATCH] Fix crash when re-entering a drag operation with a move.

Fixes: lp:1834111
* https://bugs.launchpad.net/kicad/+bug/1834111
---
 pcbnew/tools/edit_tool.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/pcbnew/tools/edit_tool.cpp b/pcbnew/tools/edit_tool.cpp
index 673f1d6ccf..21bd678df4 100644
--- a/pcbnew/tools/edit_tool.cpp
+++ b/pcbnew/tools/edit_tool.cpp
@@ -405,6 +405,9 @@ int EDIT_TOOL::Main( const TOOL_EVENT& aEvent )
     OPT_TOOL_EVENT evt = aEvent;
     VECTOR2I prevPos;
 
+    // Prime the pump
+    m_toolMgr->RunAction( ACTIONS::refreshPreview );
+
     // Main loop: keep receiving events
     do
     {
@@ -455,6 +458,8 @@ int EDIT_TOOL::Main( const TOOL_EVENT& aEvent )
                 if( lockFlags == SELECTION_LOCKED )
                     break;
 
+                m_dragging = true;
+
                 // When editing modules, all items have the same parent
                 if( EditingModules() )
                 {
@@ -513,7 +518,6 @@ int EDIT_TOOL::Main( const TOOL_EVENT& aEvent )
 
                 prevPos = m_cursor;
                 controls->SetAutoPan( true );
-                m_dragging = true;
             }
 
             m_toolMgr->RunAction( PCB_ACTIONS::selectionModified, false );