I reported this bug to MS via "MS Connect" site.
Anybody can send bug report via the site ealsily.
I was suprised about nobody sent bug report until now.
Oh one man sent the report, but he did not include schema file, so MS couldn't reproduce the bug, and it has been ignored.
My report is listed in:
https://connect.microsoft.com/VisualStu ... kID=289668
(You need MS passport account)
I have no support request right, so I cannot request support for this problem. If you have support right, you may make MS to make a hotfix for this bug. Via MS support site.