From e49661d7e0f71c64102ef53e03aebfbf17a489ec Mon Sep 17 00:00:00 2001
From: Matthias Kuhn <matthias@opengis.ch>
Date: Tue, 12 Jul 2016 19:27:31 +0200
Subject: [PATCH] [server] Fix crash in WMS server when... bad things happen

No idea what exactly the reason is, and it was only discovered by
countless hours of printf-debugging. So I'm just pushing the fix
for everyone else who might be affected.
---
 src/server/qgswmsprojectparser.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/server/qgswmsprojectparser.cpp b/src/server/qgswmsprojectparser.cpp
index e2c06d75126..4448aada80c 100644
--- a/src/server/qgswmsprojectparser.cpp
+++ b/src/server/qgswmsprojectparser.cpp
@@ -1146,6 +1146,11 @@ void QgsWMSProjectParser::addLayers( QDomDocument &doc,
         }
       }
 
+      if ( !ltGroup )
+      {
+        QgsDebugMsg( QString( "Skipping group %1, it could not be found" ).arg( name ) );
+        continue;
+      }
       QString shortName = ltGroup->customProperty( "wmsShortName" ).toString();
       QString title = ltGroup->customProperty( "wmsTitle" ).toString();