openscenegraph needs to be updated to 3.6.5

[Maksim S]

Current version blocks: https://bugs.launchpad.net/ubuntu/+source/openmw/+bug/1883693

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: openscenegraph (not installed)
ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41
Uname: Linux 5.4.0-37-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.2
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Tue Jun 16 14:32:08 2020
InstallationDate: Installed on 2019-10-12 (247 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Beta amd64 (20190926.1)
SourcePackage: openscenegraph
UpgradeStatus: Upgraded to focal on 2020-06-16 (0 days ago)

[Bret Curtis (psi29a)]

I doubt Ubuntu will backport OSG 3.6.5 to Bionic and Focal; but OSG here is busted.

[tracey rivera (tracey258)]

This 2020 bug report indicates a problem with the `openscenegraph` package on Ubuntu 20.04 after upgrading from 19.10, even though the https://www.nj-mvc.com package wasn't installed. Potential causes include issues during the upgrade, dependency problems, leftover configurations, or a misidentified bug. To investigate, check APT logs, try installing `openscenegraph`, look for broken packages, review other bug reports, and examine system logs from that period. If you're experiencing a similar issue now, these steps might still be relevant.