From 15c64ee92d747ec17ee05d5eb3bdf48e7033de4e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomasz=20W=C5=82ostowski?= <tomasz.wlostowski@cern.ch>
Date: Fri, 6 Apr 2018 14:57:12 +0200
Subject: [PATCH] pcbnew: CONNECTIVITY_ALGO should always mark newly added nets
 as dirty

Fixes: lp:1761698
* https://bugs.launchpad.net/kicad/+bug/1761698
---
 pcbnew/connectivity_algo.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/pcbnew/connectivity_algo.cpp b/pcbnew/connectivity_algo.cpp
index 6562a3f2e9..bacdc40ef9 100644
--- a/pcbnew/connectivity_algo.cpp
+++ b/pcbnew/connectivity_algo.cpp
@@ -932,8 +932,18 @@ void CN_CONNECTIVITY_ALGO::MarkNetAsDirty( int aNet )
         return;
 
     if( (int) m_dirtyNets.size() <= aNet )
+    {
+        int lastNet = m_dirtyNets.size() - 1;
+
+        if( lastNet < 0 )
+            lastNet = 0;
+
         m_dirtyNets.resize( aNet + 1 );
 
+        for( int i = lastNet; i < aNet + 1; i++ )
+            m_dirtyNets[i] = true;
+    }
+
     m_dirtyNets[aNet] = true;
 }