From 88849590ddd01e75f7fa60f90248aec1f7033aa3 Mon Sep 17 00:00:00 2001
From: Michael Zanetti <michael_zanetti@gmx.net>
Date: Mon, 16 Jul 2018 22:49:14 +0200
Subject: [PATCH] fix a crash that may happen in some circumstances with funny
 rules

---
 libnymea-app-core/rulemanager.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/libnymea-app-core/rulemanager.cpp b/libnymea-app-core/rulemanager.cpp
index 14970864..e6635fcc 100644
--- a/libnymea-app-core/rulemanager.cpp
+++ b/libnymea-app-core/rulemanager.cpp
@@ -246,7 +246,10 @@ StateEvaluator *RuleManager::parseStateEvaluator(const QVariantMap &stateEvaluat
     stateEvaluator->setStateDescriptor(sd);
 
     foreach (const QVariant &childEvaluatorVariant, stateEvaluatorMap.value("childEvaluators").toList()) {
-        stateEvaluator->childEvaluators()->addStateEvaluator(parseStateEvaluator(childEvaluatorVariant.toMap()));
+        StateEvaluator *stateEvaluator = parseStateEvaluator(childEvaluatorVariant.toMap());
+        if (stateEvaluator) {
+            stateEvaluator->childEvaluators()->addStateEvaluator(stateEvaluator);
+        }
     }
     operatorEnum = QMetaEnum::fromType<StateEvaluator::StateOperator>();
     stateEvaluator->setStateOperator((StateEvaluator::StateOperator)operatorEnum.keyToValue(stateEvaluatorMap.value("operator").toByteArray()));