Video Lens leaks memory

[Sami Jaktholm]

Memory consumption increases everytime you make a search.

Steps to reproduce:
1. Note the initial memory usage
2. Make 10 random searches
3. Check the memory usage

For me the usage increases about 300 KiB per search.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity-lens-video 0.3.5-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
Date: Mon Apr 30 23:29:15 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=fi_FI.UTF-8
 SHELL=/bin/bash
SourcePackage: unity-lens-video
UpgradeStatus: No upgrade log present (probably fresh install)

[David Callé (davidc3)]

Moving to libunity.
It's a bug easy to notice with all Python lenses, working with a large amount of results.

[Michal Hruby (mhr3)]

The issue is that the variants that get created while appending rows to the models do not get unreferenced - so it's an issue in python-gobject-introspection, and maybe we could workaround it in Dee.

[Martin Pitt (pitti)]

I uploaded PyGObject 3.7.91 to raring now, which fixes tons of memleaks. This should help a lot with this particular bug as well, but I don't think it's fully fixed yet. I linked the remaining upstream bug which is related to this.