Cascading filtering is broken.

[Reftek85]

Hosting
hosted at budibase.app, latest version 2.28.4.
MYSQL backend

Describe the bug
when trying to filter a relationship picker option based on another relationship pickers or an option picker it does not works.
I am still learning but tried different approach with data providers, relationship pickers, options pickers, nothing works.

I stumble on this how-to from budibase for nested or cascading filtering https://docs.budibase.com/docs/cascading-dropdown-filters
and even the displayed demo on the webpage does not filter at all.
I click on Canada, the second field activate, but all the options are there without filtering.

I tried to reproduce the step on the How-to and it still doesn't work

To Reproduce
table with multiple relationships,
create a form block,
try to filter relationship picker based on another another relationship pickers choice or option picker.,

other test
https://docs.budibase.com/docs/cascading-dropdown-filters
select a country
look at the unfiltered city dropdown

Expected behavior
filtering should work

[linear]

BUDI-8332 missing filtering selector on relationship picker, MYSQL