fix edge case (#1163)

## Fixes Or Enhances

Fixes #1162 by not skipping the `required` for non nested structs
accidentally introduced in last release.

Author: Dean Karn

validator.go

@@ -173,7 +173,7 @@ func (v *validate) traverseField(ctx context.Context, parent reflect.Value, curr
 		// structs. Since it's basically nonsensical to use `required` with a non-pointer struct
 		// are explicitly skipping the required validation for it. This WILL be removed in the
 		// next major version.
-		if !v.v.requiredStructEnabled && ct != nil && ct.tag == requiredTag {
+		if isNestedStruct && !v.v.requiredStructEnabled && ct != nil && ct.tag == requiredTag {
 			ct = ct.next
 		}
 	}

validator_test.go

@@ -13534,3 +13534,26 @@ func TestNestedStructValidation(t *testing.T) {
 		})
 	}
 }
+
+func TestTimeRequired(t *testing.T) {
+	validate := New()
+	validate.RegisterTagNameFunc(func(fld reflect.StructField) string {
+		name := strings.SplitN(fld.Tag.Get("json"), ",", 2)[0]
+
+		if name == "-" {
+			return ""
+		}
+
+		return name
+	})
+
+	type TestTime struct {
+		Time time.Time `validate:"required"`
+	}
+
+	var testTime TestTime
+
+	err := validate.Struct(&testTime)
+	NotEqual(t, err, nil)
+	AssertError(t, err.(ValidationErrors), "TestTime.Time", "TestTime.Time", "Time", "Time", "required")
+}