From 2ca819a6271a5c4b0dbda3839851ca5a05768991 Mon Sep 17 00:00:00 2001
From: Jeff Young <jeff@rokeby.ie>
Date: Fri, 9 Oct 2020 14:26:09 +0100
Subject: [PATCH] Don't assume a DRC_CONSTRAINT has a parent rule.

It will still have a name, though.
---
 pcbnew/router/pns_kicad_iface.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pcbnew/router/pns_kicad_iface.cpp b/pcbnew/router/pns_kicad_iface.cpp
index f62b80bca5..466cdf97df 100644
--- a/pcbnew/router/pns_kicad_iface.cpp
+++ b/pcbnew/router/pns_kicad_iface.cpp
@@ -237,7 +237,7 @@ bool PNS_PCBNEW_RULE_RESOLVER::QueryConstraint( PNS::CONSTRAINT_TYPE aType, cons
         case PNS::CONSTRAINT_TYPE::CT_WIDTH:
         case PNS::CONSTRAINT_TYPE::CT_DIFF_PAIR_GAP:
             aConstraint->m_Value = hostConstraint.GetValue();
-            aConstraint->m_RuleName = hostConstraint.GetParentRule()->m_Name;
+            aConstraint->m_RuleName = hostConstraint.GetName();
             aConstraint->m_Type = aType;
             return true;
        }