Re-order the JPEG quantization tables to normal order when loading. This wastes a few CPU cycles if you don't need them. But it has the advantage of hiding the zigzag order JPEG implementation detail of these tables completely from Pillow users.
This difference has led to cases where: * arrays in zigzag order were taken from a dict and passed directly as a qtables parameter, causing them to be "zigzagged" again by libjpeg. * dicts with lists in normal order being passed to JpegImagePlugin.convertdictqtables, causing them to be unnecessarily "de-zigzagged".