Comment 10 for bug 1411422

I know a lot of people who would love to see this bug fix get into their systems. Blake, do you have any thoughts on my suggestion in #2. I don't think it's a deal-breaker for getting the code in if we can't do it, but if it's something that can be easily added, I think it will prevent a lot of orphan parts from being left behind on bibs.

Also, would it be possible to add a regression test?