From f942e3e31fc8b308729cad442378e0ca7658efda Mon Sep 17 00:00:00 2001
From: Maciej Suminski <maciej.suminski@cern.ch>
Date: Wed, 19 Jul 2017 13:00:48 +0200
Subject: [PATCH] Fixed a crash when items are unselected when dragging

Fixes: lp:1702355
* https://bugs.launchpad.net/kicad/+bug/1702355
---
 pcbnew/tools/edit_tool.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pcbnew/tools/edit_tool.cpp b/pcbnew/tools/edit_tool.cpp
index 673cba764e..0b0d467c80 100644
--- a/pcbnew/tools/edit_tool.cpp
+++ b/pcbnew/tools/edit_tool.cpp
@@ -481,7 +481,8 @@ int EDIT_TOOL::Main( const TOOL_EVENT& aEvent )
                 break;      // exit the loop - we move exactly, so we have finished moving
             }
 
-            if( m_dragging )
+            // TODO check if the following can be removed
+            if( m_dragging && !selection.Empty() )
             {
                 // Update dragging offset (distance between cursor and the first dragged item)
                 m_offset = static_cast<BOARD_ITEM*>( selection.Front() )->GetPosition() - modPoint;