From f8722c1bb2438acb4ddbb635972f4ea4760d2001 Mon Sep 17 00:00:00 2001
From: wandererfan <wandererfan@gmail.com>
Date: Thu, 30 Apr 2020 11:17:15 -0400
Subject: [PATCH] [TD]crash loading old development models

- LeaderLine behaviour changed during development
---
 src/Mod/TechDraw/Gui/QGILeaderLine.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Mod/TechDraw/Gui/QGILeaderLine.cpp b/src/Mod/TechDraw/Gui/QGILeaderLine.cpp
index fd9688efa6..833bd18230 100644
--- a/src/Mod/TechDraw/Gui/QGILeaderLine.cpp
+++ b/src/Mod/TechDraw/Gui/QGILeaderLine.cpp
@@ -359,7 +359,12 @@ void QGILeaderLine::draw()
     if ( vp == nullptr ) {
         return;
     }
+
+    double scale = 1.0;
     TechDraw::DrawView* parent = featLeader->getBaseView();
+    if (parent != nullptr) {
+        scale = parent->getScale();
+    }
 
     if (m_editPath->inEdit()) {
         return;
@@ -373,7 +378,6 @@ void QGILeaderLine::draw()
     }
     m_lineStyle = (Qt::PenStyle) vp->LineStyle.getValue();
 
-    double scale = parent->getScale();
     double baseScale = featLeader->getBaseScale();
     double x = Rez::guiX(featLeader->X.getValue());
     double y = - Rez::guiX(featLeader->Y.getValue());