hidden fields with "multiple" enabled & not "clear on hide" trigger validation (required)

[LaurensBurger]

Product versie / Product version

3.3.x > 3.4.x > latest

Customer reference

Venray 194

Omschrijf het probleem / Describe the bug

This configuration will add a empty string to the list while loading the step:

Which will block the submission:

Old & new renderer, with and without new logic.

submissions which cannot be submitted:
multivalue textfield: [""]
which used to be:
multivalue textfield: [null]

Stappen om te reproduceren / Steps to reproduce

form 1071 on m-test.

Verwacht gedrag / Expected behavior

No response

Which renderer?

None

Screen resolution

None

Device

None

OS

None

Browser

No response

[sergei-maertens]

Isn't the solution here to clear the one item from the default value in the form builder?

Hit the grey cross button to remove it:

[LaurensBurger]

No, or changing it in the json does not solve it:

{
    "selectievakjes": {
        "a": true,
        "b": false,
        "c": false
    },
    "hiddenMultifield": [
        ""
    ],
    "bestandsupload": [],
    "eMailadres": [
        ""
    ],
    "postcode": [
        ""
    ],
    "datum": [
        ""
    ]
}

Upload components "bestandsupload": [], is not triggering the validation.

[sergei-maertens]

Yeah something is wrong with the default values of multiple-enabled components then, because removing all items should lead to defaultValue: []