From 42c114f6ed37b79877ae53988a082c4ace306892 Mon Sep 17 00:00:00 2001
From: Jeff Young <jeff@rokeby.ie>
Date: Sat, 2 Jan 2021 00:30:22 +0000
Subject: [PATCH] Record status of via dragging in Walkaround mode.

Fixes https://gitlab.com/kicad/code/kicad/issues/3967
---
 pcbnew/router/pns_dragger.cpp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/pcbnew/router/pns_dragger.cpp b/pcbnew/router/pns_dragger.cpp
index b77a18227a..68f14c06d0 100644
--- a/pcbnew/router/pns_dragger.cpp
+++ b/pcbnew/router/pns_dragger.cpp
@@ -419,20 +419,21 @@ bool DRAGGER::dragWalkaround( const VECTOR2I& aP )
             ok = true;
         }
 
-        if(ok)
+        if( ok )
         {
             m_lastNode->Remove( origLine );
             SEG dummy;
             optimizeAndUpdateDraggedLine( dragged, dummy, aP );
         }
-    break;
     }
+        break;
+
     case DM_VIA: // fixme...
     {
         dragViaWalkaround( m_initialVia, m_lastNode, aP );
-
-        break;
+        ok = !m_world->CheckColliding( m_draggedItems );
     }
+        break;
     }
 
     m_dragStatus = ok;