Strange name error when importing goog.module into ES6 module

A.js:

``` javascript
goog.module("some.namespace.A");
class A {
}
exports = A;
```

B.js:

``` javascript
import A from "goog:some.namespace.A";
console.log(A);
```

```
path/to/B.js:2: ERROR - Fully qualified reference to name 'some.namespace.A' provided by a goog.module.
Either use short import syntax or convert module to use goog.module.declareLegacyNamespace.
```

Note the error is on the console.log line.

Workaround:
add `goog.module.declareLegacyNamespace();` after `goog.module(...)`.