KDE Open File dialog does not remember previously opened file

Another regression compared to KDE4, the KDE Plasma 5 Open File dialogue does not remember the previously open folder.

At best, the Open file dialogue should remember the last folder opened by application and/or by activity. But currently, it always open in the $HOME directory. I often try to open different files in a raw, using the same application, but each time I have to navigate back to the folder I am interested in.

Currently, I use the hack to temporarily add the appropriate folders in the bookmarks, but if I am not careful, the bookmarks become too numerous to navigate easily, which defeats the purpose.

I experience this for example when I want to select another background image for the plasma desktop.