--- Comment #8 from Katrin Fischer <[hidden email]> ---
There is a difference:
"Bound withs" are on item level. The library might have something twice, but
once it's bound with something else and once it's on its own. That can happen
especially in libraries with old and rare books.
bug 11175 is talking about showing relationships between bibliographic records,
so it's on a different level. For example in Germany for a multi volume work
you'd usually have a 'set record' that represents the whole work and then a
record for each volume. They are tied together using 7xx and 8xx. The goal of
bug 11175 would then be to show the volume records on the set record.