From 5d8ecd4b20530da1f2c8ce140cd276527421013d Mon Sep 17 00:00:00 2001
From: Yorik van Havre <yorik@uncreated.net>
Date: Tue, 25 Jul 2017 15:07:11 -0300
Subject: [PATCH] Arch: Fixed crash in wall with height=0

---
 src/Mod/Arch/ArchWall.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Mod/Arch/ArchWall.py b/src/Mod/Arch/ArchWall.py
index b392e1741f..b4bd5adda3 100644
--- a/src/Mod/Arch/ArchWall.py
+++ b/src/Mod/Arch/ArchWall.py
@@ -573,6 +573,8 @@ class _Wall(ArchComponent.Component):
                 if Draft.getType(p) == "Floor":
                     if p.Height.Value:
                         height = p.Height.Value
+        if not height:
+            return None
         if obj.Normal == Vector(0,0,0):
             normal = Vector(0,0,1)
         else: