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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
This issue still exists. One of our java students passed this "excercise" without any changes. Learning effect: 0. Can we improve this?
nope, but that may happen from time to time.