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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.
Done! C++ Fork
Thanks for your report, I will add this edge cases and publish the fork with updates.
You should log an issue on the discourse page. I believe test cases should be added for this.