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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.
Why don't you test it? Click Fork, add some test, see if it works.
There is already a test for that. The answer to your question is no, it works fine.