2004-01-11  Pedro Gimeno  <pggimeno@wanadoo.es>

	* app/core/gimpdrawable-preview.c (gimp_drawable_preview_scale):
	Apply threshold to alpha in the same way as it is applied to the
	image in indexed mode. Fixes bug #115793, at least until the
	alpha thresholds in indexed images are removed.

	* plug-ins/FractalExplorer/Display.c: Fix zoom undo handling
	issues. Closes bug #82478.