fix release lookups in event saving where we haven't migrated releases (#4881)
fix release lookups in event saving where we haven't migrated releases (#4881)


JamesMura/sentry,beeftornado/sentry,JackDanger/sentry,ifduyue/sentry,looker/sentry,gencer/sentry,ifduyue/sentry,jean/sentry,JamesMura/sentry,jean/sentry,mvaled/sentry,JamesMura/sentry,BuildingLink/sentry,looker/sentry,mvaled/sentry,jean/sentry,jean/sentry,JackDanger/sentry,looker/sentry,BuildingLink/sentry,BuildingLink/sentry,looker/sentry,JamesMura/sentry,looker/sentry,mvaled/sentry,jean/sentry,gencer/sentry,BuildingLink/sentry,ifduyue/sentry,JamesMura/sentry,mvaled/sentry,JackDanger/sentry,gencer/sentry,BuildingLink/sentry,gencer/sentry,mvaled/sentry,mvaled/sentry,beeftornado/sentry,beeftornado/sentry,gencer/sentry,ifduyue/sentry,ifduyue/sentry