Issue with Type Hinting in a Union Schema with Similar Properties

Schema.Union(
  Schema.declare((input: unknown): input is Location => input instanceof Location && input.$isPersisted, {
    identifier: 'Location',
    description: 'Location model instance',
  }),
  Schema.Struct({
    city: Schema.optionalWith(Schema.NullOr(Schema.String), { default: () => null }),
    region: Schema.optionalWith(Schema.NullOr(Schema.String), { default: () => null }),
    country: Schema.optionalWith(Schema.NullOr(Schema.String), { default: () => null }),
  })
)

Schema.Union(
  Schema.declare((input: unknown): input is Location => input instanceof Location && input.$isPersisted, {
    identifier: 'Location',
    description: 'Location model instance',
  }),
  Schema.Struct({
    city: Schema.optionalWith(Schema.NullOr(Schema.String), { default: () => null }),
    region: Schema.optionalWith(Schema.NullOr(Schema.String), { default: () => null }),
    country: Schema.optionalWith(Schema.NullOr(Schema.String), { default: () => null }),
  })
)