The use of BelongsTo

In the last week I was messing around with gorma and I've noticed something: a model can't belong to two different models. I'm not talking about the philosophy behind the relational model. What I'm talking is about this:

`
Model("ThisModel", func() {

Alias("schema.thismodel")

RendersTo(ThisModelMedia)

BuildsFrom(func() {
Payload("thismodel", "create")
Payload("thismodel", "update")
})

BelongsTo("ThatOtherModel")

BelongsTo("AThirdModel")
})
`

This makes the goagen tool unable to generate the appropriate code, in fact, any code, since it exits with a code 1.