"Close All But This" tab prompts to save the project

Project:VS.Php for Visual Studio 2008
Component:User interface
Category:bug report
Priority:minor
Assigned:Unassigned
Status:active
Description

When you right-click on a tab in the editor window and select "Close All But This" all of the current tabs are closed, however a prompt to save the current project appears as well. It seems like closing tabs should not require this prompt..?