Setting autoPopulate to false on relations does not return ids.

[loongmxbt]

Describe the bug
I need to add autoPopulate: false to relational fields (one-to-many), and later get the data.
E.g. Project has many Reports, when I add "autoPopulate": false to reports, then the whole reports field won't return. I hope to know the ids for further use.

"reports": {
      "collection": "report",
      "via": "project",
      "autoPopulate": false
    },

In N-1 relation, if set autoPopulate: false, it will return the id, e.g. project: 1.
This problem occurs when the field is 1-N and N-N relations. The field won't return.

Steps to reproduce the behavior

1. Go to a one-to-many relational fields, e.g. Project has many reports
2. Add autoPopulation: false to reports field
3. GET /projects/1
4. The report field doesn't return.

Expected behavior
I think it should behave the same, return reports: [1, 2, 3] or reports: [{id: 1}, {id: 2}, {id: 3}]

Screenshots
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Code snippets

{
  "connection": "default",
  "collectionName": "projects",
  "info": {
    "name": "project",
    "description": ""
  },
  "options": {
    "increments": true,
    "timestamps": [
      "created_at",
      "updated_at"
    ],
    "comment": ""
  },
  "attributes": {
    "name": {
      "unique": true,
      "required": true,
      "type": "string"
    },
    "reports": {
      "collection": "report",
      "via": "project"
    },
    "comments": {
      "collection": "comment",
      "via": "project"
    }
  }
}

System

• Node.js version: 10.16.1
• NPM version: 6.9.0
• Strapi version: 3.0.0-beta.17.6
• Database: SQLite
• Operating system: Windows

Additional context
Add any other context about the problem here.

[derrickmehaffy]

Please completely fill out the required template, including the versions. Once you have updated the issue and correctly followed the template this can be reopened.

[loongmxbt]

@derrickmehaffy Sorry, I have modifed the issue.

[jonpalmisc]

Any update or workaround on this? I'm having the same issue.

[jonpalmisc]

I'm not familiar with the Strapi code base, but I would be more than happy to try to fix this myself if you could point me in the right direction! @derrickmehaffy