From d8078999a474ad36293416467de71f086f6a09f8 Mon Sep 17 00:00:00 2001
From: "Aaron J. Seigo" <aseigo@kde.org>
Date: Wed, 4 Aug 2010 01:00:26 +0000
Subject: [PATCH] if someone jerked us around behind our back, then remove
 record of the cached version and try again CCBUG:233051

svn path=/trunk/KDE/kdelibs/; revision=1158867
---
 private/dataengineconsumer.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/private/dataengineconsumer.cpp b/private/dataengineconsumer.cpp
index 6f593a013..6af441fb4 100644
--- a/private/dataengineconsumer.cpp
+++ b/private/dataengineconsumer.cpp
@@ -94,7 +94,12 @@ DataEngineConsumer::~DataEngineConsumer()
 DataEngine *DataEngineConsumer::dataEngine(const QString &name)
 {
     if (m_loadedEngines.contains(name)) {
-        return DataEngineManager::self()->engine(name);
+        DataEngine *engine = DataEngineManager::self()->engine(name);
+        if (engine->isValid()) {
+            return engine;
+        } else {
+            m_loadedEngines.remove(name);
+        }
     }
 
     DataEngine *engine = DataEngineManager::self()->loadEngine(name);