Did you try with a properly defined Eloquent one-to-many relation and eager loading?
I think this wouldn't be affected by the issue.

Yes, my models look something like this:

class Author extends Eloquent
{
	public function books()
	{
		return $this->hasMany('Book');
	}
}

class Book extends Eloquent
{
	public function author()
	{
		return $this->belongsTo('Author');
	}

	public function test()
	{
		return 'Test';
	}
}

If you look at my examples above you'll see they are working fine, until I want to grab columns with the same name ("Slug" in this case).

$books = Book::with('author')->where('category_id', '=', 1)->get();