Objects with the same filename may be different from others based on the provided plugin options. Using filename *and* the provided options as object cache key helps to avoid fetching the wrong object.
then have these additions merged with the main Registry ObjectCache during the main loop. git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14474 16af8721-9629-0410-8352-f15c8da7e697
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14473 16af8721-9629-0410-8352-f15c8da7e697