Cannot edit facets on Drupal 10.1

Getting this error on a content that has a taxonomy term, and I added a facet for the term name...

Created the MR. For the issue. Please Review

I applied the patch in MR!177 and am still getting the same error.

Tbh I'm not sure if this is a bug, I think at least the exception should display the actual error rather than something generic, I'm adding a MR that instead of checking for null checks for the interface, and that moves the error from "Error: Call to a member function getType() on null" to the actual field being missing from the facet.

I think that's the root cause of this issue, when you delete a field from the search api index than the view uses, everything kinda breaks, which Idk how we can prevent.

The solution for showing the form would be to do a try/catch on every processor's "supportsFacet" method, but not sure if that's worth doing.

Think we need to determine

1. Are there any duplicates around this issue
2. What caused this, want to make sure we aren't masking a larger issue.