Bug#729289: transition: openscenegraph

["Rebecca N. Palmer" <r.palmer@bham.ac.uk>]

The choreonoid maintainer has agreed to my fix.

> (This starts to be offtopic, so perhaps would be better to stop
> discussing it in the bug report).
Where would you suggest: #718381 (the openwalnut breakage) or a new 
wishlist bug against openscenegraph?

> I don't understand why this would not be useful with my proposal.
I didn't say it would be useless, just less useful than the high 
proportion of breakages here might suggest.

> , and stabilise that version in Debian before we ask rdeps to
> start to migrate,
Use experimental for that?