Yeah, Bella Saison yeast be like that. It is a domesticated version of Saccharomyces cerevisiae var. diastaticus. It can eat break down starch and complex sugars into simple sugars and eat it all on its own. So, it doesn't really matter what your mash temp is, it will eat it anyway as long as you pitch enough and it doesn't run out of the nutrients required for the enzymes it makes (glucoamylase for example) to do that to work. If you brewed a regular beer and got even just 1 cell of a wild version of this stuff got into your bottle, then some months down the road it might explode. Most "gusher" infections are caused by a wild version of this stuff.
I only use it in 1.06 or < beers these days, usually 1.05 or <. I've used it in 1.09 beers once. That was mental as far as final beers ABV. I think that beer finished at 1.001. It just eats.
Anyway, I brewed a Franken American APA today with 10# of pale malt, 1 can of Mr. Beer Bewitched Amber that I got at a garage sale for a couple of bucks, 3oz of Mosiac, and a couple of packs of Coopers Ale yeast.