Context

• node version: 10.11.0 and 8.12.0
• joi version: 13.6.0
• environment (node, browser): node
• used with (hapi, standalone, ...): hapi
• any other relevant information:

What are you trying to achieve or the steps to reproduce ?

const Joi = require("joi");

const baseArray = Joi.object().keys({
  key: Joi.array()
    .min(2)
    .required()
    .items(Joi.object().keys({ a: Joi.string() }))
});
const extended = baseArray.keys({ key: Joi.reach(baseArray, "key").min(1) });

const value = { key: [{ a: "toto" }] };
await Joi.validate(value, extended);

Runkit to reproduce the problem.

Which result you had ?

It throws saying that the key array expects 2 items whereas I overrided it for a .min(1).

What did you expect ?

I was expecting the override to work and the validation to pass.