From 1480f890bd652a16028a7c8dc03bf20b019ba59f Mon Sep 17 00:00:00 2001
From: whitequark <whitequark@whitequark.org>
Date: Sun, 16 Apr 2017 00:35:44 +0000
Subject: [PATCH] Add a check omitted in e5259d7a.

---
 src/clipboard.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/clipboard.cpp b/src/clipboard.cpp
index 8753e039..48d33812 100644
--- a/src/clipboard.cpp
+++ b/src/clipboard.cpp
@@ -164,6 +164,8 @@ void GraphicsWindow::PasteClipboard(Vector trans, double theta, double scale) {
     // For arcs, reflection involves swapping the endpoints, or otherwise
     // the arc gets inverted.
     auto mapPoint = [scale](hEntity he) {
+        if(he.v == 0) return he;
+
         if(scale < 0) {
             hRequest hr = he.request();
             Request *r = SK.GetRequest(hr);