Nova 11 split controls not showing when using split action buttons

The new split action buttons (close, magnify) don’t appear when creating splits using the split icon in the upper right of the editor (horizontal/vertical split button). They only appear when dragging tabs to create splits. This seems to be an unintended inconsistency although I like having a way to create splits without the new split action buttons. I prefer the clean look and using the key bindings instead.