Generating default set of labels errors with 500 Internal Server Error

Summary

Generating default set of labels errors with 500 Internal Server Error.

Steps to reproduce

1. Go to the project Issues tab
2. Click "generate default set of labels" (I think it only appears when the project has no labels)
3. The page loads pretty quick with error 500 Internal Server Error

Expected behavior

The default set of labels to be generated.

Actual behavior

Default labels are not generated.

Relevant logs and/or screenshots

Started POST "/xx/xx/labels/generate" for x.x.x.x at 2016-10-24 13:00:48 +0000
Processing by Projects::LabelsController#generate as HTML
Parameters: {"authenticity_token"=>"xx", "namespace_id"=>"xx", "project_id"=>"xx"}
Completed 500 Internal Server Error in 45ms (ActiveRecord: 4.0ms)
ArgumentError (wrong number of arguments (given 1, expected 0)):
app/services/labels/find_or_create_service.rb:10:in `execute'
lib/gitlab/issues_labels.rb:22:in `block in generate'
lib/gitlab/issues_labels.rb:21:in `each'
lib/gitlab/issues_labels.rb:21:in `generate'
app/controllers/projects/labels_controller.rb:58:in `generate'
lib/gitlab/request_profiler/middleware.rb:15:in `call'
lib/gitlab/middleware/go.rb:16:in `call'
lib/gitlab/middleware/readonly_geo.rb:29:in `call'