If you need to call useGetOne more than once in a reactadmin page, consider the useGetManyAggregate hook instead: it will drastically reduce the number of API calls.

useGetOne Documentation: https://marmelab.com/reactadmin/useG...
ReferenceField Documentation: https://marmelab.com/reactadmin/Refe...
Code for this tutorial: https://stackblitz.com/github/fzanino...