Relevanssi Premium 2.27.5

* Security: Stop XSS attacks in comments when highlighting post content.
* Minor fix: Add support for disabling the Restrict Content Pro 'Hide restricted posts' option.
* Minor fix: Avoid errors from non-existing author_name values.
* Minor fix: More connection problems with PDF server are classified as temporary.
* Minor fix: Wiping server errors for attachments didn't always work correctly.
* Minor fix: Click tracking permalinks are no longer passed through `esc_attr()` as that would sometimes break the links.

* Minor fix: Remove the update nag.

* Minor fix: Make click-tracking code more error-resistant.
* Minor fix: Avoid problems with object custom field values.
* Minor fix: Fix problems with click-tracking, pinning and WPML support.

* Minor fix: Version 2.26.1 had broken the auto updates. This version fixes it.

* Security fix: Prevent an XSS attack by a malicious contributor.
* Minor fix: 'Hide Relevanssi on edit pages' didn't affect the block editor sidebar visibility. It does now.

* New feature: New filter hook `relevanssi_forbidden_post_types` filters the list of post types excluded from Relevanssi indexing.
* New feature: New filter hook `relevanssi_forbidden_taxonomies` filters the list of taxonomies excluded from Relevanssi indexing.
* New feature: New filter hook `relevanssi_show_password_protected` controls whether password protected posts are shown in the search results.
* New feature: The Relevanssi metabox has new CSS classes and added HTML tags to allow better styling and to make it easier to hide sections of the metabox.
* New feature: Relevanssi settings tabs have more CSS ids to help hide individual settings.
* New feature: Support for `post_mime_type` query parameter.
* Changed behaviour: The `pre_relevanssi_related` and `post_relevanssi_related` action hooks get the post ID as a parameter, as it's not always available otherwise.
* Changed behaviour: Password protected posts are excluded from the search results by default to protect their contents.
* Minor fix: Click-tracking front end JS code now uses `wp_print_inline_script_tag()`.
* Minor fix: Related posts template CSS now uses `wp_add_inline_style()`.
* Minor fix: An array `_rt` tag won't cause a fatal error anymore.
* Minor fix: The Relevanssi network options blog list is reduced to 50 blogs to avoid crashes.
* Minor fix: The settings tab query parameter was renamed to avoid collisions with other plugins.
* Minor fix: The `post_id` parameter in the `[relevanssi_related_posts]` shortcode didn't work.
* Minor fix: In rare cases, the search results would not be in relevance order if the throttle wasn't used.

* Security fix: Prevent CSV injection attack in log export.
* Security fix: Restrict access to doc count updates.
* Minor fix: Product variations check the parent product for access restrictions, to avoid situations where variations of a draft product appear in the results.
* Minor fix: Improved TablePress compatibility.
* Minor fix: Added error handling to the Ninja Table compatibility code.

* Security fix: Relevanssi had a vulnerability where anyone could access the search logs and click logs. The log export is now protected.
* Minor fix: Relevanssi had problems with Polylang when a post or term didn't have language specified. Now Relevanssi handles those situations better.
* Minor fix: Post date throttling had a MySQL error that made it replace JOINs instead of concatenating.
* Minor fix: The log database table now has an index on session_id, as not having that index can slow down the search a lot.

* New feature: New filter hook `relevanssi_searchform_dropdown_args` filters the arguments for `wp_dropdown_categories()` in search forms.
* Changed behaviour: Search form shortcode taxonomy dropdowns are now sorted alphabetically and not by term ID.
* Minor fix: Caught a bug in excerpt-building with empty words.
* Minor fix: It's now possible to set both `post__in` and `post__not_in` and likewise for `parent__in` and `parent__not_in`.
* Minor fix: The `post_status` is no longer available as a query parameter.

Minor fix: Fixes broken taxonomy indexing.