divergence from the previous version of the blockchain, with new tokens having to be mined.

That's correct . New blockchain sonformed as a result of hardfork issues 1:1 ratio of new tokens to the old chain token holders as well.

[conflict between Justin sun founder of Tron foundation and the steemit communit

Steemit community presumed tron integration as a hostile takeover and intererference in decentralised working .

Good luck