inputs object change after add record

```
inputs {
paymentInformation: {
type: "string",
},
defaultForm: {
type: "ref",
},
defaultPolicy: {
type: "ref",
},
}
```
insert record using create method
after inputs object change soomething like that
```
inputs {
paymentInformation: null,
createdAt: 2019-02-15T11:18:22.242Z,
updatedAt: 2019-02-15T11:18:22.242Z,

}
```
console inputs object
it will return inserted records

Start by reproducing the issue with the shown inputs object and the create method, then compare the object before and after insertion and inspect the create path involved. Done means the original inputs object remains unchanged after a record is created while the inserted record still contains the expected fields.

Written by the indexing model from the issue text.