Lists as input to NmzCone

May be this is unrelated, but I just wanted to ask if there is a something wrong here.

The following code gives an error 

```
D := NmzCone(["equations",[[1..3]]]);
Error, Element 2 of the input list must be an integer matrix in
  _NmzCone( opts_list ...
```
While this does not
```
D := NmzCone(["equations",[List([1..3],x->x)]]);
```

Thank you,
Pedro