[pavon]

IMO not using horrible opaque change IDs is one of the best parts of this. If I wanted it to work like Gerrit, I would just be using Gerrit.

[sunshowers]

You don't have to expose change IDs in the UI other than as a secondary thing! The current integer index would work just fine.

[gsnedders]

And enough of the time you can just match based on subject line, similar to how fixup/squash commits work with autosquash.

There’s enough ways you can match up commits, with plenty of prior art in this space.