NameError: uninitialized constant ReindexRun (NameError)

[bnryz]

While following the Docker dev environment setup instructions in the README, I ran into the aforementioned error while attempting to seed the database with rake db:seed. Older versions of the Lumen database reference reindexing via a rake command (chillingeffects::index_changed_model_instances) that no longer exists. Is the seeding code possibly outdated on this front?