Fixes #165034, reported by Jorn Baayen.

Fixes #165034, reported by Jorn Baayen.

2005-07-08  Kristian Rietveld  <kris@gtk.org>

	Fixes #165034, reported by Jorn Baayen.

	* gtk/gtkrbtree.[ch] (_gtk_rbtree_set_fixed_height): add a
	mark_valid parameter (so we can mark all nodes as valid when we
	are setting them to the fixed height).

	* gtk/gtktreeview.c (initialized_fixed_height_mode): mark all
	nodes as valid when setting the fixed height,
	(do_validate_rows): update call to _set_fixed_height,
	(gtk_tree_view_row_inserted): mark node as valid when fixed
	height mode is enabled and a height has been set,
	(gtk_tree_view_build_tree): if fixed height mode is enabled,
	mark new nodes as valid in addition to setting the height.