Org agenda -- checking for invisible tasks after filtering...

[Christian Schwarzgruber]

Hey!

I'm a contributor of `org-super-agenda`
https://github.com/alphapapa/org-super-agenda, `org-super-agenda` lets you group
tasks into blocks. However, `org-super-agenda` doesn't consider filtering, which
might leave you with empty groups.

To solve that, I created a PR 
(https://github.com/alphapapa/org-super-agenda/pull/77)
which advices `org-agenda-filter-apply` and `org-agenda-finalize`
(https://github.com/alphapapa/org-super-agenda/pull/77/files#diff-465f82cd8ad2c42f0cebb190be6f58abR305).

Both are calling the same function `org-super-agenda--hide-or-show-groups`
(https://github.com/alphapapa/org-super-agenda/pull/77/files#diff-465f82cd8ad2c42f0cebb190be6f58abR1114).

In that function I check for the property `'invisible`. If all tasks in a group 
are
invisible the group gets hidden too.

The question is now, is it possible to further reduce the advised functions to
just one advised function.


best,

Christian