When directly dragging another clip from the icon view without selecting it first, the wrong clip gets inserted
@jeff
Submitted by Jeff F.T. Assigned to Alex Băluț @aleb
Description
Let's say you have clips A, B, C in the media library, in iconview mode.
Select B, drag and drop it into the timeline.
Immediately click and drag C into the timeline; result: B gets inserted.
It seems the selection hasn't changed before we actually start the drag operation?
Imported from https://bugzilla.gnome.org/show_bug.cgi?id=737634