Custom Query Filter not working after upgrading php to v8

[kutoman]

Description

This is my second attempt of submitting this issue. The customer support told me, as a Elementor Pro user, that I would get help here in github! Please note, it's not about the custom code itself, as it was mistakenly seen so in my last submission! It's about the filter, you documented here. You can use any custom code in my case, the issue remains. To make it obvious I simplified the closure this time!

For a long time I have been using the code below making use of custom query hooks on a website without any issues. But the web hoster wants me to upgrade the php version to 8.2.27. Unfortunately I noticed that this code does not work anymore with php version 8+ which leads to empty post entries (NOTE: the sample below is just for reproduction. It's not my actual custom code!). I also checked it with debugging via xdebug and can confirm that indeed the query filter is called when running php 7 but not called at all when running php 8! Can you please help me?

function custom_filter($query) {
  echo "this line is not run when I switch to php 8! But it does run with php 7!";
}

add_action( 'elementor/query/single_custom_archive', 'custom_filter');

Steps to reproduce

switch php version from version 7 to version 8 (e.g. 8.2.27)

Expected behavior

a properly working custom query with php 8 like it does with php 7

Elementor System Info

== Server Environment ==
	Operating System: WINNT
	Software: Apache/2.4.43 (Win32) mod_fcgid/2.3.9a
	MySQL version: MySQL Community Server - GPL v8.0.16
	PHP Version: 8.2.27
	PHP Max Input Vars: 4000
	PHP Max Post Size: 1000M
	GD Installed: Yes
	ZIP Installed: Yes
	Write Permissions: All right
	Elementor Library: Connected

== WordPress Environment ==
	Version: 6.7.2
	Site URL: http://tanga-local.local
	Home URL: http://tanga-local.local
	WP Multisite: No
	Max Upload Size: 300 MB
	Memory limit: 256M
	Permalink Structure: /%year%/%monthnum%/%day%/%postname%/
	Language: de
	Timezone: Europe/Berlin
	Debug Mode: Inactive

== Theme ==
	Name: Dizayn Design
	Version: 1.0
	Author: Dizayn Design
	Child Theme: Yes
	Parent Theme Name: OceanWP
	Parent Theme Version: 1.6.8
	Parent Theme Author: Nick

== User ==
	Role: administrator
	WP Profile lang: de_DE
	User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36

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== Log ==
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