Hi
Only single date then Will swap
8/1/2018 8 Jan -after scrap- 1/8/2018 1 aug
As long there is a double digit day or month it won’t change
17/10/2018 17 oct -after scrap- 17/10/2018 17 oct
8/10/2018 8 oct - after scrap- 8/10/2018 8 oct
17/8/2018 17 aug - after scrap- 17/8/2018 17 aug