Another ~50 courses have been cloned! 🙂
Each of these courses had more than one attribute column with the same name. I've solved this by merging the attribute columns that have the same name.
These courses have IDs from 233071 to 233126 and might benefit from more cleanup in the future.
EDIT: Nvm, I've removed these courses again. I think I've figured out a better way to migrate them.