message: Fix TimeField when setting value to undefined
diff: @@ -3,7 +3,7 @@ import { TimeInput, TimeInputProps } from '../../../input/TimeInput'
  export const format = (value: string) => {
  // Omit seconds in case the initial field value is in format 'HH:mm:ss'
  - return value ? value.slice(0, 5) : value
  + return value ? value.slice(0, 5) : null
  }
  export type TimeFieldProps = BaseFieldProps<TimeInputProps>
  