Bitmap images leave original image as a temporary. Whenever
you resize the image, the original image is resized. This
preserves the best possible quality.
The same works for cropping and Tile û the full image before
cropping or tiling is still remembered. If you resize the
cropped or tilled image û the original image will resize
instead.
Make new Original replace the temporary original with the
current image.
Then you can resize tilled image or cropped image like you would
do with normal image.