uischema props are not propagated to Layout renderer when using a material Object Renderer

[Sewdn]

Describe the bug

When you add a UI Control for a complex object, the default behaviour is to wrap the UI with a Group or VerticalLayout. When extra props are added to customize the behaviour for this Layout Renderers, these are not available in the Customize Group or VerticalLayout Renderer.

Expected behavior

I would expect all props that are set in the uischema to be propagated to the Layout renderer as well.

Steps to reproduce the issue

1. Add a custom Group Renderer that checks for the existence of an additional property test on the uischema
2. Add a Control to the layout for a compound object property and add this additional test property.
3. notice that the form for the object is rendered as a group, but the custom Group renderer is not being used, although the test property was available on the uischema of the object Control.

{
  uischema: {
    type: 'VerticalLayout',
    elements: [
      {
        type: 'Control',
        acl: 'PRIVATE',
        label: 'an ACL compound object',
        asCard: false,
        preset: 'header',
        scope: '#/properties/reinforcement',
      },
    ],
  },
  schema: {
    type: 'object',
    properties: {
      reinforcement: {
        type: 'object',
        properties: {
          type: {
            type: 'string',
            enum: ['sunk', 'embedded', 'hybrid'],
          },
          strength: {
            type: 'number',
            unit: '<sup>kg</sup>&frasl;<sub>m<sup>2</sup></sub>',
          },
        },
      },
    },
  },

Screenshots

No response

Which Version of JSON Forms are you using?

v3.2.1

Framework

React

RendererSet

Material

Additional context

Just spreading all of the uischema props, fixes this:

https://github.com/eclipsesource/jsonforms/blob/bb7a255c8bbabedae0ac31d6031453538e7753ec/packages/material-renderers/src/complex/MaterialObjectRenderer.tsx#L60

findUISchema(
        // @ts-expect-error
        uischemas,
        schema,
        uischema.scope,
        path,
        () =>
          isEmpty(path)
            ? Generate.uiSchema(schema, 'VerticalLayout', undefined, rootSchema)
            : {
                ...uischema,
                ...Generate.uiSchema(schema, 'Group', undefined, rootSchema),
                label,
                // preset: 'header',
                // asCard: false,
              },
        uischema,
        rootSchema,
      ),

I setup a custom Object Renderer wit higher priority to do this, but I would suggest to consider this adding it to core behaviour (not only for Group Layouts, but also for VerticalLayout and other renderers and frameworks)

[lucas-koehler]

Hi @Sewdn , thank you for the suggestion. I will discuss with the team whether that is something we want to support. Usually, props of UI Schema elements themselves are not propagated down. A specific detail schema for an object can also be provided by using the uischemas prop of JsonForms.