Population returning `null`, omiting attributes and changing attributes names after upgrading to sails 1.2.3 from 0.12

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**Node version**: v12.13.0
**Sails version** _(sails)_: 1.2.3
**ORM hook version** _(sails-hook-orm)_: 2.1.1
**DB adapter & version** _(e.g. sails-mysql@5.55.5)_: sails-postgresql@1.0.2

Hi,

After upgrading from sails 0.12 to 1 my models stopped populating some relationships and on some others the attributes names of the output objects are renamed to the letter `c`

The model attributes where changed to comply with the new validations and types, other than that the attributes are the same before and after the upgrade.

Models
```
// Facility.js
module.exports = {
schema: true,
attributes: {
....

provider: {
model: 'provider',
required: true,
columnName: 'group__c',
},

....
}
```

```
// Provider.js
module.exports = {
schema: true,
attributes: {
....

facilities: {
collection: 'facility',
via: 'provider'
},

....
}
```

Controller
```
// FacilityController.js
function find(req, res) {
Facility
.find()
.populate('provider')
.then(helpers.ifResultNotEmpty)
.then(f => res.json(f))
.catch(e => res.status(e.status).json(e))
}
```
Response before the upgrade:
```
[
{
"provider": {
"id": "ferferfeafre",
"name": "The name of the provider",
"createdAt": "2016-08-15T02:58:38.000Z",
"updatedAt": "2019-11-13T22:47:50.000Z",
"advisor": "42342fdsscsdcscsd",
"clientType": "The clientType",
"city": "Gotham",
"address": "1234 Evergreen Ave",
"state": "The state",
"postcode": "90210"
},
"id": "mcrioo34mro3r43",
"name": "The name of the facility",
"type": "The type of the facility",
"phone": "54 1234 1234",
"website": null,
"createdAt": "2016-08-15T04:17:48.000Z",
"updatedAt": "2019-11-13T22:47:50.000Z",
"racsId": 1234,
"careType": "The care type",
"clientType": "The client type",
"bedsHighCare": 96,
"bedsAgeingInPlace": 0,
"city": "Gotham",
"address": "234 Evergreen Ave",
"state": "The State",
"postcode": "90210",
"email": null,
"information": null
},
...
]
```

Response after the upgrade(note that apart from the population set to null, there are missing attributes, all of these missing attributes have the prop `columnName` attached to them):
```
[
{
"createdAt": "2016-08-15T07:18:09.000Z",
"updatedAt": "2019-01-23T13:01:26.000Z",
"id": "mcrioo34mro3r43",
"name": "The name of the facility",
"type": "The type of the facility",
"city": "Gotham",
"address": "1234 Evergreen Ave",
"state": "The State",
"postcode": "12345",
"phone": "43 3245 12222",
"website": null,
"provider": null
},
....
]
```

Another interesting behaviour in the upgraded version is, if i remove the `.populate()` call from the promise chain in the controller, the response objects shows the attributes with `columnName` back again.

Start with the model definitions in Facility.js and Provider.js, then inspect FacilityController.js and reproduce the difference between populated and unpopulated queries. Compare the responses before and after population, focusing on relationships and attributes with columnName. Done means population returns the related provider and preserves the expected attribute names and values.

Written by the indexing model from the issue text.