Keep widget areas (and widgets) expanded upon page refresh in admin

[dgwyer]

This is a minor annoyance but noticeable one.

Every time you reload the Appearance -> Widgets admin page, the widget areas (and widgets) currently expanded become closed when the page is refreshed.

[raamdev]

The current behavior makes sense to me. Working with the widgets (reordering, adding, deleting, etc.) does not require manually refreshing the page, so why should we save the state of the widgets when reloading the page?

[helen]

I could possibly see saving widget area open/close state like we do for dashboard widgets and other postboxes, which would be on a per-user basis. I wouldn't do it for individual widgets, though.

[nacin]

I could understand saving the state of the widget areas (expanded/collapsed), which is also something we do for meta boxes when editing a post, for example. But I wouldn't want it to happen for widgets.

[nacin]

Welp, helen and I said the same thing.

[ocean90]

Related: #26684

[chriscct7]

Closing as maybelater. Complete lack of interest on the feature on the ticket over the last 2 years. Feel free to reopen when more interest re-emerges (particularly if there's a patch)