jsonSerialize ignore optional attributes

[eav93]

🐞 Bug Report

$data = [
            'reply_markup' => (new Keyboard(
                [
                    'One',
                    'Two'
                ],
                [
                    'Three',
                    'Four',
                ]
            ))->setResizeKeyboard(true)
        ];

Entity::jsonSerialize() return only raw_data but does not return optional attributes: resize_keyboard, one_time_keyboard, etc...

[TiiFuchs]

Can confirm. I'm working on a fix.

[TiiFuchs]

This bug has nothing to do with the introduction of jsonSerialize. It was there before.
I fixed it with PR #1304 though. Should be in the next release. Trying to release later today.