wp_hide_post_Public::query_posts_join() expected to be a reference, value given

[skorasaurus]

After upgrading my dev instance to php 7.1 (specifically 7.1.11-1+ubuntu14.04.1+deb.sury.org+1; it was previously running 7.0); I receive the following error in my query monitor plugin:
Parameter 2 to wp_hide_post_Public::query_posts_join() expected to be a reference, value given
This happens at wp-includes/class-wp-hook.php:298 and a call stack:

` wp()
wp-blog-header.php:16

WP->main()
wp-includes/functions.php:955

WP->query_posts()
wp-includes/class-wp.php:735

WP_Query->query()
wp-includes/class-wp.php:617

WP_Query->get_posts()
wp-includes/class-wp-query.php:3248

apply_filters_ref_array('posts_join_paged')
wp-includes/class-wp-query.php:2554`

[halfer]

I found this issue too. Oddly, it seems to have been fixed in 2.0.11 release on 20 Aug 2017, but the change for this is not in master. Also, the latest release over on the WP site is 2.0.10.

Having had a look at the changeset for 2.0.11, I wonder if someone did a complete rebase of the project? The changes are not at all mergeable, and are massive for a minor patch-level update.

Update

My bad - although the 2.0.11 release notes say "Fixed a bug where parameter to a filter was not being passed by reference", the necessary change is not in there. I will use a fork for now.