Cassio Koshikumo <ckoshikumo@gmail.com> writes:

> Hm. It makes sense that TAB is not affected... Somehow I hadn't really
> considered that.
>
> What I expected to happen (and now I realize it was not a justified
> expectation) was to have the visibility of the sparse-tree kept while
> tabbing. So I could expand a tree, then collapse it again, all the
> while keeping the sparse-tree "filter" applied. But I guess it doesn't
> make much sense.
>
> Well, I guess I could leave it as a suggestion for new functionality,
> but I don't even know if it's feasible.

It is not very hard to do, actually. See the attached patch.

However, I am not sure if it is something of interest for other Org
users.

If there is more support, I can convert the patch into proper new Org
feature, adding customization and necessary ORG-NEWS announcement.