From a03799c61e73645f412c0a78629a1c8adf66b4ec Mon Sep 17 00:00:00 2001
From: Jeff Young <jeff@rokeby.ie>
Date: Sat, 5 Nov 2022 21:53:57 +0000
Subject: [PATCH] Don't mark collisions on dragged items, only things they
 collide with.

Fixes https://gitlab.com/kicad/code/kicad/issues/8965
---
 pcbnew/router/pns_router.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/pcbnew/router/pns_router.cpp b/pcbnew/router/pns_router.cpp
index ee296d71f8..db47e209b4 100644
--- a/pcbnew/router/pns_router.cpp
+++ b/pcbnew/router/pns_router.cpp
@@ -664,8 +664,17 @@ void ROUTER::markViolations( NODE* aNode, ITEM_SET& aCurrent, NODE::ITEM_VECTOR&
             }
         }
 
+        ITEM_SET draggedItems;
+
+        if( GetDragger() )
+            draggedItems = GetDragger()->Traces();
+
         for( OBSTACLE& obs : obstacles )
         {
+            // Don't mark items being dragged; only board items they collide with
+            if( draggedItems.Contains( obs.m_item ) )
+                continue;
+
             obs.m_item->Mark( obs.m_item->Marker() | MK_VIOLATION );
             updateItem( item, obs.m_item );
         }