In order to reset demo data to some initial state, simply run

    ./reset.sh

Demo users are defined in demo_users.json file and can be imported to Mongo using the following command.

mongoimport --db codebrag --collection users --file codebrag_demo_users.json

Password for all users is codebrag. You can change their usernames, logins and avatars but don't touch passwords and salts - they are encrypted and kept in sync.