Query parameters: Conversion of array items does not work if parameter name ends with "[]"

This is related to https://github.com/interagent/committee/issues/253

Given you have a parameter definition like this, where the name ends with a "[]", because that is a standard you've agreed on.

parameters:
  - name: ids[]
    description: IDs of the things to get
    in: query
    schema:
      type: array
      items:
        type: integer

Expected behavior:
For a request like GET /things?ids[]=1&ids=[]=2, I would expect committee to convert the array items to integers as described in the API description.

Current behavior:
Array items do not get converted to integers, but remain strings.

I guess this is mostly due to Rack's default handling of "xx[]" parameters, as it handles those as an "xx" array by default, so this might be tricky.

Do you plan to support this? If so I would be happy to help.

Start by reproducing the documented GET request with a parameter named ids[] and compare the parsed values with the schema's integer item type. Trace how Rack's default handling of bracketed query parameters reaches Committee's query-parameter conversion; done means ids[] array items are converted to integers as described by the API schema.