In dolphin the places toolbar now distinguishes between places and devices. They are sorted (places first) and separated by the separators "places" and "devices". In the KDE file dialogue it appears like the sorting has happened too. But the distinguising separator "devices" is missing. I believe for constistency the places toolbar in file dialogues should also have "places" and "devices". Reproducible: Always
This is probably a duplicate of bug 169751.
And now they do!