folder-symbolic broken after d4296e09
Some context in nautilus!266 (comment 303320) (the partial screenshot there).
The easiest way to see that is probably in the GTK+ file chooser (run gtk{3,4}-widget-factory
and click on the file chooser button in the first page) on a bookmark.
Bisected to d4296e09.
Screenshot from duplicate issue #13 (closed)