Blender Git Loki

Bugfix #26437

- Tooltip-hanging fix made the 'active' button be removed when mouse
enters another subwindow. Caused by commit of a week ago.

- Reverted the eventsystem change that sets 'active subwindow' before
it calls modal handlers. This made editors become active on using
menus, buttons, or other modal ops.

Side effect is that for transform operators called via toolbar, the
overlay-extra draw with helplines now gets skipped. Will check on
good ways for it.