Update cm13 with adopted storage

Yesterday I set up external sd card as internal storage in cm13 in my mother's moto g 2015 because it ran out of space. I use to update her phone once a month doing clean flashes. Before, as it was set up as portable storage, there where no problems with updating nightlies, but now my question is: if I do a clean flash, am I going to need to set up sd card as internal again and reformat it? Or will it automatically recognise the previously formated sd card? Thanks