From 8dadc184294952ba57c42ae7f436fcbb843288ac Mon Sep 17 00:00:00 2001
From: Maciej Suminski <orson@orson.net.pl>
Date: Thu, 2 Feb 2017 23:31:33 +0100
Subject: [PATCH] Check if selection is not empty before modifying it in
 EDIT_TOOL

Fixes: lp:1661311
* https://bugs.launchpad.net/kicad/+bug/1661311
---
 pcbnew/tools/edit_tool.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pcbnew/tools/edit_tool.cpp b/pcbnew/tools/edit_tool.cpp
index 651ea5bab7..a344b31106 100644
--- a/pcbnew/tools/edit_tool.cpp
+++ b/pcbnew/tools/edit_tool.cpp
@@ -179,6 +179,9 @@ int EDIT_TOOL::Main( const TOOL_EVENT& aEvent )
         if( evt->IsAction( &COMMON_ACTIONS::editActivate )
                 || evt->IsMotion() || evt->IsDrag( BUT_LEFT ) )
         {
+            if( selection.Empty() )
+                break;
+
             BOARD_ITEM* curr_item = selection.Front();
 
             if( m_dragging && evt->Category() == TC_MOUSE )