scenario 1:

• grab a note
• edit a note
• try moving the cursor around focus has a tendency to leave the pane and move to a different pane

scenario 2 (today):

• grab a note
• edit a note can't type into note being edited. Can still click to move the cursor around. Arrow keys move the whole surface as if the pane is not editable. This continues after multiple C-e's that are resetting and setting the 'edit' bit. 'F4' fixes the problem.

What might cause surface to pan even when a pane is editable? If cursor_x is nil. But if the cursor is being drawn, cursor_x can't be nil it seems.