👨🏻💻 improve DX with error/warn in development (#2461) 🧻 clean up logic for useFieldArray get default values (#2451) 🐞 fix #2437 with data value merge () 🐞 fix issue with pop with defaultValues 🐞 fix with nested field array delete () 🙉 fixed logic to output error message () 💪 enhance error message () 🧪 more test coverage