The grip drag mutates the document live (so grips and the properties panel
track the cursor), which meant Esc left the entity at its dragged position.
Back up the edited entity when the drag starts (the same first-move point
that hides it for the overlay preview) and, on Esc, restore that backup
before un-hiding and re-tessellating — reverting the entity to where it was
when the drag began. A normal release drops the backup and keeps the
dragged geometry.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
55022ae60e