Visibility with pathUndefined etc. is not working for itemPath in Iterate

[andlbrei]

🐛 Bug Report

Not sure if this is a bug, or just not supported. But anyways...

Using Visibility with pathxxx like pathUndefined does not seem to work on itemPaths in Iterate.
Visibility with pathUndefined="/someItemPath" will always show the content, because the itemPath will be considered undefined.

We have some data we fetch from the server. Sometimes certain data fields are missing, and if they are missing we would like to show a Field to insert the data. If the data is there we show a Value.
Using pathUndefined for this seems perfect, but it's not working for itemPath/within Iterate.

To Reproduce

Steps to reproduce the behavior:
https://codesandbox.io/p/sandbox/itempath-visibility-rgnjyt

Expected behavior

I expect (or would like) it to be possible to use Visibility for itemPath in the exact same way as for path.

Eufemia Version

10.62.4