you can wear bikini in the oath, they will refuse you to appear, then you can judicial review this federal motion.
this takes long time to be in the federal court, you will finally win based on the niqad case.
your successful citizenship application outcome will not change, and you will successfully delay the process.
so in case the reason your withdraw is not to be a canadian so early, this can be your option,and not risking your next application slowness ;D