Fixed
- Dragging tabs between spaces in the Library is Zen's own again: the tab
follows the pointer and Zen's line shows where it lands. Zia's sidebar drag
had taken it over, leaving the tab parked over the space it came from with
a gap behind it until it was let go. - An essential dragged down into a closed folder stays in it until its bottom
meets the bottom of the folder's opened slot, as a tab does; it left with
its bottom still well inside.