This signal is emitted when @back_forward_list changes. This happens
when the current item is updated, a new item is added or one or more
items are removed. Note that both @item_added and @items_removed can
%NULL when only the current item is updated. Items are only removed
when the list is cleared or the maximum items limit is reached.
This signal is emitted when @back_forward_list changes. This happens when the current item is updated, a new item is added or one or more items are removed. Note that both @item_added and @items_removed can %NULL when only the current item is updated. Items are only removed when the list is cleared or the maximum items limit is reached.