Port the corruption bug fix of check-in (5938) into a branch off of
version 3.6.6. (CVS 5947)
Version 3.6.6.1 (CVS 5948)
Port check-ins (5955) and (5956) into the 3.6.6 branch. (CVS 5958)
Version number to 3.6.6.2. (CVS 5959)
Version 3.6.6.2 (CVS 5960)