LINQ to SQL Batch Updates/Deletes: Fix for 'Could not translate expres

I've found and posted a new fix in the code from my original post: Batch Updates and Deletes with LINQ to SQL. I'm not sure of the etiquette for this sort of thing: new post (like I'm doing) or just a comment in the original post. I want to be sure to make anyone who downloaded my code aware of an issue/fix (assuming they are monitoring via a RSS feed).