The :then Output Is Wrong or Compare Works Wrongly

[kookma]

• open https://tiddlywiki.com
• create a new tiddler with below script

<$list
 filter="[all[current]!is[system]] :then[all[current]links[]count[]compare:integer:gteq[1]]">

I am here! -- <<currentTiddler>>
</$list>

It shows I am here! – New Tiddler 1 while it should display nothing!

If you change the code as below (note to the value in gteq[0])

<$list
 filter="[all[current]!is[system]] :then[all[current]links[]count[]compare:integer:gteq[0]]">

I am here! -- <<currentTiddler>>
</$list>

It shows I am here! – 0 This is correct!

[kookma]

I read the doc again and it seems the above code works correctly. The doc says:

If the output of a :then prefixed filter run is itself an empty list, the result of all previous filter runs is passed through unaltered.

So my code above works correctly! Sorry for confusion.

[Jermolene]

No worries @kookma – could the documentation be improved to reduce the confusion?

[kookma]

Yes, I think the point: "If the output of a :then prefixed filter run is itself an empty list, the result of all previous filter runs is passed through unaltered." should be emphasized and one example can be added. I can submit a PR.