2007-01-09  Morten Welinder  <terra@gnome.org>

	* src/sheet.c (sheet_range_bounding_box): Respan as needed.
	Fixes #393359.

	* src/item-grid.c (item_grid_draw): Handle respans outside the
	loop, not inside.

	* src/dependent.c (gnm_cell_eval_content): Optimize the
	value-didn't-change case.
	(workbook_recalc): Don't force full-sheet redraws here.


svn path=/trunk/; revision=15357