Added code to the DatagbasePager::removeExpiredSubgraphs() that update

the osgDB::Registry cache.

src/osgDB/DatabasePager.cpp

@@ -537,6 +537,10 @@ void DatabasePager::removeExpiredSubgraphs(double currentFrameTime)
         _childrenToDeleteListMutex.unlock();
     }
     // otherwise the childrenRemoved list will automatically unref() and deleting the nodes.    
+
+    // update the Registry object cache.
+    osgDB::Registry::instance()->updateTimeStampOfObjectsInCacheWithExtenalReferences(currentFrameTime);
+    osgDB::Registry::instance()->removeExpiredObjectsInCache(expiryTime);
 }
 
 

src/osgDB/Registry.cpp

@@ -1813,8 +1813,7 @@ void Registry::removeExpiredObjectsInCache(double expiryTime)
         oitr!=_objectCache.end();
         ++oitr)
     {
-        if (oitr->second.second<=expiryTime &&
-            oitr->second.first->referenceCount()<=1)
+        if (oitr->second.second<=expiryTime)
         {
             // record the filename of the entry to use as key for deleting
             // afterwards/