Simple query with Fetch and SingleOrDefault throws exception (regression from 3.3.0)

The following simple query throws an exception with a build from the current master branch:

var query = db.Users
.Fetch(x => x.Role)
.Where(x => x.Name == "xxx")
.SingleOrDefault();

The exception is:
Remotion.Linq.Utilities.ArgumentTypeException : Argument inputInfo has type Remotion.Linq.Clauses.StreamedData.StreamedSingleValueInfo when type Remotion.Linq.Clauses.StreamedData.StreamedSequenceInfo was expected.
Parametername: inputInfo