[BUG] toFormikValidationSchema gives "Required" error for empty string ("") when validating for z.string()

[Inambe]

Describe the bug
It's a bit weird to explain but when using toFormikValidationSchema, empty string resolves to "Required" error (that's the opposite of how Zod works).

To Reproduce
Steps to reproduce the behavior:

1. Create this simple form:

<Formik
  initialValues={{ name: "" }}
  validationSchema={toFormikValidationSchema(
    z.object({
      name: z.string(),
    })
  )}
>
  {({ handleSubmit, errors, values, handleChange }) => (
    <form onSubmit={handleSubmit}>
      {console.log(errors)}
      <input
        value={values.name}
        id="name"
        onChange={handleChange}
      />
    </form>
  )}
</Formik>

2. Check the console (there won't be any error)
3. type something and then remove it
4. You'll see the "Required" error in the console

Expected behavior
Strangely, toFormikValidate works perfectly fine. If you take example above and change toFormikValidationSchema to toFormikValidate and validationSchema to validate, you won't see that error (that's the correct behavior according to Zod. An empty string is a valid string).

Screenshots
NA

Desktop (please complete the following information):

• OS: Windows
• Browser Chrome
• Version 11

Node version: v18.20.3

Zod, Formik and zod-formik-adapter versions:

• Zod: 3.23.8
• Formik: 2.4.6
• zod-formik-adapter: 1.3.0

Additional context
NA

[bogdanS-e]

Same for me. I didn't find the solution yet
name: z.string().min(1, 'Some error')

but in formik.errors I see name: "Required" and not my custom error