[knorker]

Yes, it's a hiccup. But not fundamental because it is actually possible to do it.

A company can have a flag day, and keep a mapping of old hash to new hash for audit purposes.

I'm not saying do it willy nilly, but repos are fundamentally below the humans and any needs they have. Blockchains say code is law, and a fork (see eth DAO) is a complete clusterfuck.

Scrubbing some PII you legally need to remove from the corp codebase? Some poking, yes, but not a disaster.

Whereas they say there's plenty of child porn in the bitcoin Blockchain.