Description

This pull request fixes an issue where the FormInput would not render a field inside a fieldset. The current logic only finds fields that have the kind of "field" but does not handle the kind of "fieldSet". The issue can be reproduced by:

1. Adding the following schema with an array field that has a fieldset defined:

   import {defineType} from 'sanity'
   
   export const myDocument = defineType({
     type: 'document',
     name: 'myDocument',
   
     fieldsets: [
       {
         name: 'fieldset',
         title: 'Fieldset',
       },
     ],
   
     fields: [
       {
         type: 'array',
         name: 'fieldsetArray',
         title: 'Fieldset array',
   
         fieldset: 'fieldset',
   
         of: [
           {
             type: 'object',
             name: 'myObject',
             fields: [
               {
                 name: 'string',
                 type: 'string',
                 title: 'String',
               },
             ],
           },
         ],
       },
     ],
   })

2. Enabling the array tree editing beta feature:

   import {defineConfig} from 'sanity'
   
   export default defineConfig({
     // ...
   
     features: {
       beta: {
         treeArrayEditing: {
           enabled: true
         }
       }
     }
   })

3. Creating an array item, and the FormInput will render this error message:

   

What to review

• Ensure that the issue is fixed
• General code review

Notes for release

N/A