Tests get skipped when using brackets in get parameter name

[yourithielen]

Describe the bug
Tests get skipped when using brackets in get parameter name

To Reproduce

openapi: 3.0.0
info:
  version: "1.1.1"
  title:  API
  description: 'TODO: Add a description'
paths:
  '/test-cases':
    get:
      summary: Test
      parameters:
        - name: filter[test]
          in: query
          required: false
          example: 1
          description: Test
      responses:
        '200':
          description: ''
          content:
            application/vnd.api+json:
              schema:
                type: object
                properties:
                  data:
                    type: string

Output

warn: API description URI template expansion warning in /var/www/api/spec.oai (API > /test-cases > Test > 200 > application/vnd.api+json): Ambiguous URI parameter in template: /test-cases{?filter%5Btest%5D}
Parameter not defined in API description document: filter[test]
complete: Tests took 3ms

What is in your dredd.yml?

color: true
dry-run: null
hookfiles: null
language: nodejs
require: null
server: npm start
server-wait: 3
init: false
custom: {}
names: false
only: []
reporter: []
output: []
header: []
sorted: false
inline-errors: false
details: false
method: []
loglevel: warning
path: []
hooks-worker-timeout: 5000
hooks-worker-connect-timeout: 1500
hooks-worker-connect-retry: 500
hooks-worker-after-connect-wait: 100
hooks-worker-term-timeout: 5000
hooks-worker-term-retry: 500
hooks-worker-handler-host: 127.0.0.1
hooks-worker-handler-port: 61321
config: ./dredd.yml
blueprint: ../../../api/spec.oai
endpoint: 'api'
user: null

What's your dredd --version output?

dredd v11.1.0 (Linux 5.0.0-15-generic; x64)

[deivid11]

Related bug: #1908