From 1aa79c9c0d219182043b24afc6bb1683a515fac8 Mon Sep 17 00:00:00 2001
From: azv <azv@opencascade.com>
Date: Tue, 30 Jul 2019 11:25:23 +0300
Subject: [PATCH] =?utf8?q?Issue=20#2961:=20=D0=A1rash=20when=20Change=20sk?=
 =?utf8?q?etch=20plane?=
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---
 src/SketcherPrs/SketcherPrs_Equal.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/SketcherPrs/SketcherPrs_Equal.cpp b/src/SketcherPrs/SketcherPrs_Equal.cpp
index 72a07d071..bc6d207a5 100644
--- a/src/SketcherPrs/SketcherPrs_Equal.cpp
+++ b/src/SketcherPrs/SketcherPrs_Equal.cpp
@@ -57,6 +57,8 @@ bool SketcherPrs_Equal::updateIfReadyToDisplay(double theStep, bool withColor) c
 {
   if (!IsReadyToDisplay(myConstraint, plane()))
     return false;
+  if (!plane())
+    return false;
 
   ObjectPtr aObj1 =
     SketcherPrs_Tools::getResult(myConstraint, SketchPlugin_Constraint::ENTITY_A());
-- 
2.39.2