Interesting issue with linksHierarchyFilter

[Scott Derderian]

I had a user bring this to my attention earlier today.   In using the

issue in linksHierarchyFilter(<filter number>, 3)

the query returns no results.

But when we add the third argument such as 

issue in linksHierarchyFilter(<filter number, 3, outward) 

we get data.

That seems somewhat counter-intuitive (at least to me).  Has anyone else encountered this?   If so, are there any suggested "tips and tricks" other than "include the 3rd argument?

Please advise.   TIA!

[Radek Dostál]

Mhm, strange, according to https://issuu.com/kintosoft/docs/links-hierarchy-structure-user-guid page 20:

Also backed by the "official" documentation: https://kintosoft.atlassian.net/wiki/spaces/LH/pages/51548138/JQL+functions#JQLfunctions-linksHierarchyFilter.1

This sounds like it should work without the 3rd argument, because 3rd argument is for exclusion.

I cannot claim that I'd have experience with these functions, but logically according to this, it sounds like a bug. I'd probably throw a ticket to the vendor if this was one of our users asking: https://marketplace.atlassian.com/apps/1211022/links-hierarchy-full-dependency-viewer?hosting=datacenter&tab=support