Bug: getFormData does not work for forms in accordions

[mbarde]

What?

Requests for actions getFormData and clearFormData are not fired in edit mode as intended when a form exists within an accordion.

Steps to reproduce

1. Setup Plone 6 with volto-form-block and volto-accordion-block
2. Add accordion block to a page
3. Add form block into accordion item
4. Configure form to store data
5. Submit data
6. Check storage in edit
7. See that no data is shown (despite form submission did work)

Versions

• Volto 16.23.0
• Plone 6.0.6
• volto-form-block 3.1.0
• @eeacms/volto-accordion-block 10.3.0
• collective.volto.formsupport 2.7.0

Reason

Sidebar.jsx (which toggles the requests) refers to a prop called properties, which does not contain the expected data when forms exists within an accordion block. In that case the relevant info is in metadata instead of properties.

Proposed fix

If metadata is present in props of Edit component, pass it as properties to Sidebar component (see #74).