ArgumentError: unknown keyword: project

https://sentry.gitlab.net/gitlab/gitlabcom/issues/648425/

ArgumentError: unknown keyword: project
  feature.rb:47:in `enabled?'
    def enabled?(key, thing = nil, default_enabled: false)
  api/unleash.rb:73:in `feature_flags'
    if Feature.enabled?(:feature_flags_environment_scope, project: project)
  api/unleash.rb:28:in `block (4 levels) in <class:Unleash>'
    present :features, feature_flags, with: ::EE::API::Entities::UnleashFeature
  grape/endpoint.rb:57:in `call'
    method.bind(endpoint_instance).call
  grape/endpoint.rb:57:in `block (2 levels) in generate_api_method'
    method.bind(endpoint_instance).call
...
(134 additional frame(s) were not displayed)

ArgumentError: unknown keyword: project