Content hash for _next/data/.../*.json files

[mwalkiewicz]

Hello,
I'm facing a problem of trashing the cache of _next/data/build_id/*.json files after every deploy because of changing build id, even if just one page is changed. Setting constant build id will inevitably cause client side inconsistencies, thus we are looking for something similar to js/css/imgur content hashing.

Is there any way of enabling content based hashing for those files? Or maybe there are other means of dealing with this problem that are commonly used?