2004-03-20  Sven Neumann  <sven@gimp.org>

	* app/core/gimpimage-undo-push.c (undo_pop_text_layer): don't
	exchange the text_layer's text object but sync it with the text
	object from the undo step.

	* app/text/gimptextlayer.c (gimp_text_layer_set): in case the
	layer has a mask, push an undo group around the text modifications.

	* app/tools/gimptexttool.c (gimp_text_tool_idle_apply): push a
	text layer undo before applying the text changes.