Spec failure due to Gitaly GPRC::Unavailable: Failed parsing HTTP/2
See https://gitlab.com/gitlab-org/gitlab-ce/builds/15840810
ActionView::Template::Error:
14:Failed parsing HTTP/2
# ./lib/gitlab/git/repository.rb:1270:in `rescue in gitaly_migrate'
# ./lib/gitlab/git/repository.rb:1266:in `gitaly_migrate'
# ./lib/gitlab/git/repository.rb:48:in `root_ref'
# ./app/models/repository.rb:465:in `root_ref'
# ./app/models/repository.rb:51:in `block (2 levels) in cache_method'
# ./lib/repository_cache.rb:20:in `fetch'
# ./app/models/repository.rb:1071:in `cache_method_output'
# ./app/models/repository.rb:51:in `block in cache_method'
# ./app/helpers/gitlab_routing_helper.rb:34:in `project_files_path'