Context Navigation

Changes between Initial Version and Version 1 of Ticket #53452, comment 4

initial	v1
4	4	In our case, we have widgets that needs to know the assigned sidebar in order to set the initial settings. But there's no form element for our widget, the settings UI is shown in another place.
5	5
6		So to be honest, I didn't pay attention to the other form data, but I believe it should be passed to the superglobal to keep WP 5.8 backward compatible with legacy widget.
	6	So to be honest, I didn't pay attention to the other form data, but I believe it should be passed to the superglobal to keep WP 5.8 backward compatible with legacy widgets.
7	7
8	8	For the 'sidebar', I believe it's legit to expose this information somewhere because `\WP_Widget::update` is called from `\WP_REST_Widgets_Controller::save_widget` which has this information as the second argument.