TypeError after D9 update

Patch #5 fixed the errors for our Drupal 9.5.2 installation.

Patch works, thanks!

#5 mentions this suppresses the error but may need a fix for it.

I have been able to reproduce the bug with the following configuration:

- Create a Search API index
- Create a facet (configure the facet to be a exposed filter (possible since Facets v3))
- Create a view listing the content
-- Add the facet as a exposed filter
-- Configure the view to work with BEF and select the Links widget for the facet exposed filter
-- Configure any replacement in the "Rewrite the text displayed" option

With this steps, you can reproduce the error.

In addition, I can confirm that applying the patch avoids the Type error but also the "Rewrite the text displayed" feature works as expected.

Just committed 🐛 BEF php 8.1.2 / TypeError: count(): Argument #1 ($value) must be of type Countable|array, null given Needs work which may fix this.