[func]*		tmark
	Lease caching is now enabled by default.  The default
	value for ``cache-threshold`` is 0.25,``cache-max-age``
	is left unspecified. It may be disabled at the desired
	scope either by setting ``cache-threshold`` to 0.0 or
	setting ``cache-max-age`` to 0.
	(Gitlab #3659)
