Fixed a warning about get_magic_quotes_gpc() being deprecated in PHP 7.4.
Fixed a conflict with plugins that use the “all_plugins” filter incorrectly.
Most likely fixed the fatal error “call to a member function isFirstRefreshDone() on null”.
Fixed a conflict with the WikiPress theme from HeroThemes and similar themes and plugins that load the Gutenberg editor in unusal ways (e.g. outside the admin panel).