Ticket #24169: 24169.php

<?php

add_action( 'after_setup_theme', function() {
        global $current_user;
        if ( ! empty( $current_user->test_24169 ) ) {
                die( 'too early' );
        }
} );
        
add_action( 'set_current_user', function() {
        global $current_user;
        $current_user->test_24169 = true;
} );