import { z } from "zod";

// Define two schemas
const emptySchema = z.object({});
const anotherSchema = z.object({
  name: z.string(),
  age: z.number().optional(),
});

// Create a union where the empty schema is checked first
const problematicSchema = z.union([emptySchema, anotherSchema.partial()]);

// Test with an object that should match `anotherSchema.partial()`
const data = { name: "myName" };

const result = problematicSchema.safeParse(data);
console.log(result);

{
  success: true,
  data: {}
}

{
  success: true,
  data: { name: "myName" }
}