Generic fix (for VS2010/VS2008 and VS2011) of 'ConnectionException: TF26175: Team Foundation Core Services attribute 'AttachmentServerUrl' not found.' on getting workitems
Exclude from the fetch the current remote (otherwise stackoverflow)
Merge pull request #438 from borysl/fix_attachmentServerUrl_not_found_bug

Generic fix (for VS2010/VS2008 and VS2011) of 'ConnectionException: TF26...
Merge pull request #439 from pmiossec/correct_recursivity_problem

Exclude from the fetch the current remote (otherwise stackoverflow)
A couple small changes to #438.

* Move common code to the base class.
* Rethrow, rather than Debug.Assert.