Resource collection does not work as expected if the resource is within group

[ilmoralito]

Steps to Reproduce

1. Clone demo app
2. Run url-mapping-report command

Expected Behaviour

The following url mapping add a URI directly below a resource using collection

group '/api', {
    '/employees'(resources: 'employee') {
        collection {
            '/search'(controller: 'employee', action: 'search', method: 'GET')
        }
    }
}

Should generate the following result regarding the search action

Controller: employee
 |   GET    | /api/employees/create                             | Action: create           |
 |   GET    | /api/employees/search                             | Action: search           |
 |   GET    | /api/employees/${id}/edit                         | Action: edit             |
 |   POST   | /api/employees                                    | Action: save             |
 |   GET    | /api/employees                                    | Action: index            |
 |  DELETE  | /api/employees/${id}                              | Action: delete           |
 |  PATCH   | /api/employees/${id}                              | Action: patch            |
 |   PUT    | /api/employees/${id}                              | Action: update           |
 |   GET    | /api/employees/${id}                              | Action: show             |

Actual Behaviour

Controller: employee
 |   GET    | /api/employees/create                             | Action: create           |
 |   GET    | /api/employees/${id}/edit                         | Action: edit             |
 |   GET    | /api/employees/${employeeId}/search               | Action: search           |
 |   POST   | /api/employees                                    | Action: save             |
 |   GET    | /api/employees                                    | Action: index            |
 |  DELETE  | /api/employees/${id}                              | Action: delete           |
 |  PATCH   | /api/employees/${id}                              | Action: patch            |
 |   PUT    | /api/employees/${id}                              | Action: update           |
 |   GET    | /api/employees/${id}                              | Action: show             |

If I avoid using group the result of using collection within resource is the expected

'/api/employees'(resources: 'employee') {
    collection {
        '/search'(controller: 'employee', action: 'search', method: 'GET')
    }
}

For the search action I get the following result

/api/employees/search

Environment Information

• Operating System: ubuntu 16.04
• Grails Version: Using grails version 3.3.1
• JDK Version: Using java version 8u144-zulu

Example Application

https://github.com/ilmoralito/url-mapping-report-demo

[olliefreeman]

I am also experiencing this, with grails 3.3.1