I don't think that's the issue. I reckon it isn't the yeast that causes the farting, it's the sulphur compounds that the yeast leave behind in the beer that does itMaybe you could add some sulfites (wine stabiliser) to kill any yeast after conditioning has done its job.
Nope, but there are clues:Can't see fart effects listed anywhere in the whitelabs specs
Interesting! Indeed it does make sense - complex carbohydrates fermenting in the gut should produce farts.I always understood it was due to the amount of unfermentable sugars in the beer being metabolised in the gut. I see The Malt Miller sells an enzyme alpha glucosidase to reduce unfermentable sugars, while there a product called Beano which contains alpha galactosidase to do the same job and exists specifically to reduce farts. https://www.beanogas.com/