Revset queries involving changeset history

[BatmanAoD]

Is there a way to query the commit history for a particular change-ID? For instance, could a revset expression refer to all commits that are empty now but have been non-empty at some point in their (evolution) history?

Context: I was talking to a Gerrit user who doesn't use jj, and he wanted to know how easy it would be to abandon commits that have been merged to trunk. Apparently these manifest as empty commits; I seem to remember (but can't find) a previous discussion about ensuring that these are automatically deleted by keeping jj's change-ID in sync with gerrit's commit-ID, but I my understanding is that this isn't done yet. Since abandoning all empty commits would potentially lose commits that have a description of "pending work" but no actual changes yet, my suggestion was to abandon commits that are currently empty but were previously non-empty; however, I'm not sure if that's currently possible.

[PhilipMetzger]

This doesn't exist yet, see #4129 (note: jj evolog previously was called jj obslog)