f4bba7cf95
Prior to [23512], the Toolbar was still displayed on wp-signup.php while logged-in because it was hooked to the `init` action. When `_wp_admin_bar_init()` was moved to instead fire on `template_redirect` for the front-end and `admin_init` on the back-end, the visibility was lost because `template_redirect` isn't fired on wp-signup.php due to `WP_USE_THEMES` not being defined. In order to maintain expected display results, a default filter has been added to hook `_wp_admin_bar_init()` to the `before_signup_header` action. This approach has the added benefit of allowing `_wp_admin_bar_init()` to be fired prior to the `wp_head` action where `_admin_bar_bump_cb()` is called (or the callback defined when 'admin-bar' theme support is added). Fixes #34418. git-svn-id: https://develop.svn.wordpress.org/trunk@35423 602fd350-edb4-49c9-b593-d223f7449a82