revert the fix for 0005432: Viewing a bug should change the "current project"

• after discussion with vboctor, this change was removed from earlier versions
  of the code.

git-svn-id: http://mantisbt.svn.sourceforge.net/svnroot/mantisbt/trunk@3613 <a class="text" href="/?p=mantisbt.git;a=object;h=f5dc347c">f5dc347c</a>-c33d-0410-90a0-b07cc1902cb9