Pit for LM
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Also, the organizers need to be able to edit the very first post with the tournament description (Russian and English versions). During the tournament, we often make additions and corrections.
If the tournament consists of several large parts (registration, groups, qualifying rounds, playoffs), then in the regulations, we focus on the current stage. Users generally can't read a lot of text, so we remove irrelevant parts and add what they need to know right now. And, of course, we sometimes need to correct spelling errors.