PATCH without response body fails with: There is no source definition which resolves the query

[Hrusikesh Panda]

Following the example project, I have this:

export default class AccountConfig extends Model {
  static modelName = 'accountConfig';
   ....
  
  updateOpts(values = {}) {
    return {
      queryType: UPDATE,
      model: this.constructor,
      modelId: this.id,
      body: {
        ...this.toJS(), // add existing values
        ...values, // add values after, overwriting any current values
      },
      params: {
        id: this.id,
      },
    };
  }
}

export const routes = [
 ...
  {
    meta: {
      url: `${url}/:id`,
      method: 'PATCH',
      headers: {
        ...headers
      },
    },
    params: ['id'],
    queryType: UPDATE,
  },
]

in my component

  onSave = (values) => {
    const opts = this.props.account.updateOpts(values)
    this.props.query(opts, (data) => console.log('d', data))
  }

When invoked, I get this warning:

There is no source definition which resolves the query Query(Model: accountConfig, Fields: *, Params: {"id":"65"}, Body: {...}, QueryType: UPDATE), ReturnType: )

and nothing happens.

Changing route to specify model also fails with same warning.

export const routes = [
 ...
  {
    meta: {
      url: `${url}/:id`,
      method: 'PATCH',
      headers: {
        ...headers
      },
    },
    params: ['id'],
    queryType: UPDATE,
    model: AccountConfig
  },
]

Changing route to specify returns makes the warning go away, but then the call fails, since the API doesn't return the item on success.

export const routes = [
 ...
  {
    meta: {
      url: `${url}/:id`,
      method: 'PATCH',
      headers: {
        ...headers
      },
    },
    params: ['id'],
    queryType: UPDATE,
    returns: AccountConfig.item()
  },
]

A PATCH need not have a response body so assuming you'll get one seems like a bug. So the question is, how do I make this work?