props become undefined after calling another URI

Hi there ,
I have a weird bug with react admin, the bug occurs in the screen. The code is below
```

```

CALL 1 : The action automatically fetch the user details below :
```
GET /api/users/1
{
@context: "/api/contexts/User"
@id: "/api/users/1"
@type: "http://schema.org/Person"
email: "test1@test.com"
givenName: "Martin"
familyName: "Lelong"
}
```

CALL 2 : The call attached to the get the JSON below :
```
[
{
@id: "/api/user-projects/1"
@type: "UserProject"
id: "1"
isAdmin: true
isMember: true
status: "ACCEPTED"
user: {
@id: "/api/users/1"
@type: "http://schema.org/Person"
givenName: "Martin"
familyName: "Lelong"
}
}
]
```

I do not understand why the result of the "call 2" replace the result of the "call 1".
I think there is a mechanism that detect the URL of the resource (@id: "/api/users/1") and replace it with the most recent result.
The consequence of this is the "email" wich present in the "call 1" becomes undefined after the execution of the "call 2".
Any idea ?