From ee666c70f6e62251122071d580ffbf8591af826b Mon Sep 17 00:00:00 2001
From: azv <azv@opencascade.com>
Date: Wed, 16 Jan 2019 09:55:32 +0300
Subject: [PATCH] Fix crash on changing parameters of 'galeries' model. Update
 model to change business parameters.

---
 src/FeaturesPlugin/FeaturesPlugin_Validators.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/FeaturesPlugin/FeaturesPlugin_Validators.cpp b/src/FeaturesPlugin/FeaturesPlugin_Validators.cpp
index 7e0b51b93..0c9afd4a6 100644
--- a/src/FeaturesPlugin/FeaturesPlugin_Validators.cpp
+++ b/src/FeaturesPlugin/FeaturesPlugin_Validators.cpp
@@ -1345,9 +1345,12 @@ bool FeaturesPlugin_ValidatorBooleanSmashSelection::isValid(
 
     ResultPtr aContext = anAttrSelection->context();
     std::shared_ptr<GeomAPI_Shape> aShape = anAttrSelection->value();
-    GeomShapePtr aContextShape = aContext->shape();
     if (!aShape.get()) {
-      aShape = aContextShape;
+      if (!aContext.get()) {
+        theError = "Error: Empty selection.";
+        return false;
+      }
+      aShape = aContext->shape();
     }
 
     if (aShape->isSolid() || aShape->isCompSolid()) {
-- 
2.39.2