Comment 4 for bug 1666512

Rebased to current master, signed off on csharp's original commit and added a new repatched commit version on top of it in the style requested to avoid unnecessary INSERT failures.

See top two commits in branch: user/bshum/lp1666512_repatch

http://git.evergreen-ils.org/?p=working/Evergreen.git;a=shortlog;h=refs/heads/user/bshum/lp1666512_repatch