Regression

This change has broken existing behaviour.

For eg: I have a JSON:

{
  "main1": {
    "child11": 1,
    "child12": 2
  },
  "main2": {
    "child21": 5,
    "child22": 6
  }
}

Now, as per validation rules, key main1 and main2 are optional. And their respective children keys should be validated only when main key exists.

The validation rules are defined as:

type Request struct {
	Main1 *struct {
		Child11     string `json:"child11" validate:"required"`
		Child12 string `json:"child12" validate:"required"`
	} `json:"main1"`
	Main2 *struct {
		Child21 string `json:"child21" validate:"required"`
		Child22 string `json:"child22" validate:"required"`
	} `json:"main2"`
}

Earlier, uptil v1.4.5, these definitions were working fine and children struct was validated only when the respective main key existed

Now, with the release v1.4.6 , this behaviour does not work anymore as nil pointer check is removed.

Originally posted by @madhurbhaiya in #191 (comment)