fix!: Shift our prior breaking change to gracefully leverage our UCP transition schema#196

drewolson-google merged 2 commits intomainUniversal-Commerce-Protocol/ucp:mainfrom

raginpirate/transition_fulfillment_id_to_optionalUniversal-Commerce-Protocol/ucp:raginpirate/transition_fulfillment_id_to_optionalCopy head branch name to clipboard