2006-02-10  Thomas Thurman <thomas thurman org uk>

	Avoid a memory leak when checking which workspace(s) a window is
	on.  Fixes #322059.

        * src/workspace.h (struct MetaWorkspace):
        * src/workspace.c (meta_workspace_new, meta_workspace_free):
	added list_containing_self member to MetaWorkspace

        * src/window.c (meta_window_get_workspaces): use
	window->workspace->list_containing_self instead of allocating (and
	leaking) such a list on the fly.