Only thing missing is indexing of branches and forks.

My main use case for GitHub search is identifying provenance of misc. changes in vendor source code tarballs for e.g. Android kernel releases. It's hard, but sometimes possible to rehydrate most of the existing commits through cherry-picks and careful rebases.

The biggest problem with the lack of indexing branches and forks is that sometimes vendors makes releases through branches, or that sometimes repos of interests are forks of e.g. `torvalds/linux`.

Hopefully we can see those being indexed in the future.

I'm also curious: has the plan to drop "less active" repos from the index gone through? Has anything changed?