Check how the bot behaves when tasks are added too often
Previously I saw the situation when the bot got “confused” when I added tasks very often (e.g. about 5 tasks during 1 minute). The bot is configured to pick up next available time as start time. However this opens an issue when a user is able to create many tasks for future times. This should be fixed somehow. The possible solution is to allow only several tasks (e.g. 2) and to refuse if more tasks has been added (asking user to delete some of them or just wait).