Add-ons Search Improvements 2.17.1

• Require php 7.2+
• Add ability to push "can view threads/tickets by other" permission(s) into ElasticSearch query, reducing php-side culling of matching content.
  This improves searching forums/tickets where the user lacks these permissions.
  This is gated behind the option Push "View X by others" check into XFES', as it requires a full reindex. (Default disabled)
  Supports the following add-ons:
  • View Sticky Threads (free) add-on.
  • Collaborative Threads (paid) add-on.
  For best results, use ElasticSearch Essentials add-on, as it simplifies this permission constraint compared to stock XenForo

• Require php 7.2+
• Add ability to push "can view threads/tickets by other" permission(s) into ElasticSearch query, reducing php-side culling of matching content.
  This improves searching forums/tickets where the user lacks these permissions.
  
  This is gated behind the option Push "View X by others" check into XFES', as it requires a full reindex. (Default disabled)
  
  Supports the following add-ons:
  • View Sticky Threads (free) add-on.
  • Collaborative Threads (paid) add-on.
  For best results, use ElasticSearch Essentials add-on, as it simplifies this permission constraint compared to stock XenForo

• Fix "array_fill_keys() expects parameter 1 to be array, null given" error when content weighting has not been configured