check permissions also for processing nodes

Signed-off-by: jkoberg <jkoberg@owncloud.com>

pkg/storage/utils/decomposedfs/decomposedfs.go

@@ -504,17 +504,13 @@ func (fs *Decomposedfs) GetMD(ctx context.Context, ref *provider.Reference, mdKe
 		return
 	}
 
-	isprocessing := node.IsProcessing()
-	if !isprocessing && !node.Exists {
+	if !node.Exists {
 		err = errtypes.NotFound(filepath.Join(node.ParentID, node.Name))
 		return
 	}
 
 	rp, err := fs.p.AssemblePermissions(ctx, node)
 	switch {
-	case isprocessing:
-		// FIXME: how to check permissions for files while processing?
-		// the node is empty and holds no further information
 	case err != nil:
 		return nil, errtypes.InternalError(err.Error())
 	case !rp.Stat: