RE: Why doesn't Info `T' cache node tree for current file?

[Drew Adams]

> > I see one problem: how to refresh
> > the cached TOC buffer when the Info file changes - the usual key `g'
> > for buffer refreshing is already allocated to `Info-goto-node'.
> 
> If it's an issue, it should be done automatically, not by user action.

Agreed.

> It seems simple enough to cache a timestamp and do a compare when the
> user types "T" ...

Why a timestamp? What kind of "file changes" are we talking about? (See my
replies to others about this.)