Error transferring projects during Username change

https://sentry.gitlap.com/gitlab/gitlabcom/issues/46202/

Errno::EINVAL: Invalid argument @ rb_file_s_rename - 
  lib/gitlab/project_transfer.rb:30:in `move'
    FileUtils.mv(from, to)
  lib/gitlab/project_transfer.rb:17:in `rename_namespace'
    move(path_was, path)
  app/models/concerns/storage/legacy_namespace.rb:24:in `move_dir'
    Gitlab::UploadsTransfer.new.rename_namespace(full_path_was, full_path)
  lib/gitlab/database/load_balancing/connection_proxy.rb:77:in `block in write_using_load_balancer'
    connection.send(name, *args, &block)
  lib/gitlab/database/load_balancing/load_balancer.rb:66:in `block in read_write'
    yield ActiveRecord::Base.retrieve_connection
...
(233 additional frame(s) were not displayed)

Errno::EINVAL: Invalid argument @ rb_file_s_rename - (/opt/gitlab/embedded/service/gitlab-rails/public/uploads/username, /opt/gitlab/embedded/service/gitlab-rails/public/uploads/username/username)

/cc @markglenfletcher