Please remove the git mirrors for andygrunwald/go-gerrit and google/go-querystrings. (added in crbug/653042 and crbug/653413). 

The latter repo is a dependency to the first and I realized a bit late that the support for nested query strings is limited. My bad for not seeing this earlier in my testing.

I found a replacement (already mirrored) in golang.org/x/build/gerrit.