27_designs.rb seed fails with undefined method username

== Seed from ee/db/fixtures/development/27_designs.rb
FFFFFrake aborted!
NoMethodError: undefined method `username' for nil:NilClass
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/lib/gitlab/git/user.rb:9:in `from_gitlab'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/lib/gitlab/gitaly_client/operation_service.rb:452:in `user_commit_files_request_header'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/lib/gitlab/gitaly_client/operation_service.rb:330:in `block in user_commit_files'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/grpc-1.19.0-universal-darwin/src/ruby/lib/grpc/generic/active_call.rb:397:in `each'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/grpc-1.19.0-universal-darwin/src/ruby/lib/grpc/generic/active_call.rb:397:in `each'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/grpc-1.19.0-universal-darwin/src/ruby/lib/grpc/generic/active_call.rb:397:in `client_streamer'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/grpc-1.19.0-universal-darwin/src/ruby/lib/grpc/generic/client_stub.rb:255:in `block in client_streamer'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/grpc-1.19.0-universal-darwin/src/ruby/lib/grpc/generic/interceptors.rb:170:in `intercept!'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/grpc-1.19.0-universal-darwin/src/ruby/lib/grpc/generic/client_stub.rb:254:in `client_streamer'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/grpc-1.19.0-universal-darwin/src/ruby/lib/grpc/generic/service.rb:175:in `block (3 levels) in rpc_stub_class'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/lib/gitlab/gitaly_client.rb:154:in `call'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/lib/gitlab/gitaly_client/operation_service.rb:354:in `user_commit_files'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/lib/gitlab/git/repository.rb:884:in `block in multi_action'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/lib/gitlab/git/wraps_gitaly_errors.rb:7:in `wrapped_gitaly_errors'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/lib/gitlab/git/repository.rb:883:in `multi_action'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/app/models/repository.rb:841:in `block in multi_action'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/app/models/repository.rb:824:in `with_cache_hooks'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/app/models/repository.rb:841:in `multi_action'
(eval):62:in `create_version'
(eval):108:in `block (2 levels) in run'
(eval):106:in `times'
(eval):106:in `block in run'
(eval):96:in `each'
(eval):96:in `run'
(eval):139:in `block (3 levels) in run_file'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/lib/gitlab/seeder.rb:23:in `quiet'
(eval):118:in `block (2 levels) in run_file'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/seed-fu-2.3.7/lib/seed-fu/runner.rb:46:in `eval'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/seed-fu-2.3.7/lib/seed-fu/runner.rb:46:in `block (2 levels) in run_file'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/seed-fu-2.3.7/lib/seed-fu/runner.rb:58:in `block in open'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/seed-fu-2.3.7/lib/seed-fu/runner.rb:57:in `open'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/seed-fu-2.3.7/lib/seed-fu/runner.rb:57:in `open'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/seed-fu-2.3.7/lib/seed-fu/runner.rb:36:in `block in run_file'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/activerecord-5.2.3/lib/active_record/connection_adapters/abstract/database_statements.rb:267:in `block in transaction'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/activerecord-5.2.3/lib/active_record/connection_adapters/abstract/transaction.rb:239:in `block in within_new_transaction'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/activerecord-5.2.3/lib/active_record/connection_adapters/abstract/transaction.rb:236:in `within_new_transaction'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/activerecord-5.2.3/lib/active_record/connection_adapters/abstract/database_statements.rb:267:in `transaction'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/activerecord-5.2.3/lib/active_record/transactions.rb:212:in `transaction'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/seed-fu-2.3.7/lib/seed-fu/runner.rb:35:in `run_file'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/seed-fu-2.3.7/lib/seed-fu/runner.rb:26:in `block in run'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/seed-fu-2.3.7/lib/seed-fu/runner.rb:25:in `each'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/seed-fu-2.3.7/lib/seed-fu/runner.rb:25:in `run'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/seed-fu-2.3.7/lib/seed-fu.rb:29:in `seed'
/Users/ameliabauerly/.rvm/gems/ruby-2.6.3/gems/seed-fu-2.3.7/lib/tasks/seed_fu.rake:36:in `block (2 levels) in <main>'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/lib/tasks/gitlab/setup.rake:35:in `setup_db'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/lib/tasks/gitlab/setup.rake:5:in `block (2 levels) in <main>'
/Users/ameliabauerly/GitLab/gdk-ee/gitlab/lib/tasks/dev.rake:7:in `block (2 levels) in <main>'
/Users/ameliabauerly/.rvm/rubies/ruby-2.6.3/bin/bundle:23:in `load'
/Users/ameliabauerly/.rvm/rubies/ruby-2.6.3/bin/bundle:23:in `<main>'
Tasks: TOP => db:seed_fu
(See full trace by running task with --trace)
support/bootstrap-rails failed
make: *** [postgresql/data] Error 1