Hidden sub-property with hide expression

[sebdeleze]

Describe the issue
Hidden sub-property with hide expression cannot be added to the form.

To Reproduce
Check this kind of property:

"hidden_sub_property_hide_expr": {
    "title": "[issue] Hidden sub-property with hide expression.",
    "description": "Hidden sub-property with hide expression can be added to the form.",
    "type": "object",
    "additionalProperties": false,
    "properties": {
        "statement": {
            "title": "Statements",
            "type": "array",
            "minItems": 1,
            "items": {
                "title": "Statement",
                "type": "string",
                "minLength": 1
            },
            "form": {
                "hideExpresssion": "true"
            }
        }
    },
    "propertiesOrder": [
        "statement"
    ]
}