From 48a796dc9c7a03a19c6e056d581adadd6bb247bb Mon Sep 17 00:00:00 2001
From: Matthias Kuhn <matthias@opengis.ch>
Date: Mon, 28 May 2018 13:43:10 +0200
Subject: [PATCH] Fix QgsVectorLayer::hasFeatures() crash when editable

---
 src/core/qgsvectorlayer.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/core/qgsvectorlayer.cpp b/src/core/qgsvectorlayer.cpp
index 9ebfa4ce7ea..16206283e4d 100644
--- a/src/core/qgsvectorlayer.cpp
+++ b/src/core/qgsvectorlayer.cpp
@@ -2767,8 +2767,8 @@ long QgsVectorLayer::featureCount() const
 
 QgsFeatureSource::FeatureAvailability QgsVectorLayer::hasFeatures() const
 {
-  const QgsFeatureIds deletedFeatures = mEditBuffer->deletedFeatureIds();
-  const QgsFeatureMap addedFeatures = mEditBuffer->addedFeatures();
+  const QgsFeatureIds deletedFeatures( mEditBuffer ? mEditBuffer->deletedFeatureIds() : QgsFeatureIds() );
+  const QgsFeatureMap addedFeatures( mEditBuffer ? mEditBuffer->addedFeatures() : QgsFeatureMap() );
 
   if ( mEditBuffer && !deletedFeatures.empty() )
   {