+
+(deffoo nnvirtual-request-expire-articles (articles group
+ &optional server force)
+ (nnvirtual-possibly-change-server server)
+ (setq nnvirtual-component-groups
+ (delete (nnvirtual-current-group) nnvirtual-component-groups))
+ (dolist (group nnvirtual-component-groups)
+ (gnus-group-expire-articles-1 group)))
+