id summary reporter owner description type status priority milestone component version severity resolution keywords cc focuses 45668 The (new) determine_locale() may throw a notice azaozz SergeyBiryukov "Happens then there is a plugin in `/mu-plugins` that loads a textdomain and `$_GET['wp_lang']` is not empty, like when trying to log in. Caused by the global `$pagenow`. It is set after mu-plugins are loaded (in vars.php) but `determine_locale()` expects is to always be set." defect (bug) closed normal 5.0.2 I18N 5.0 normal fixed has-patch fixed-5.0