"First" filter fails with expressions

Given this data:

``` javascript
$scope.types = [
{
"name": "type1",
"default": false
},
{
"name": "type2",
"default": true
}
];
```

This failed:
`

`

I had to revert to:
`

`

As a test I also did:
`

`
but didn't seem to work either

This was working on 0.4.5 but not in 0.5.2