config and run [Possibility to clone a run]

Issue

In my current approach of the way I used dnadna, I faced multiple times the need to run again a run_{run_id}, because I had slightly modified some code e.t.c., and at the end, I had some confusing moments about finding what I did exactly in this run_{run_id}

Discussion

I am thinking about this file structure:
\model_name\config_{config_id}\run_{run_id} instead of:
\model_name\run_{run_id}

To prevent this, I think, it could be nice to have a way to distinguish multiple runs on the same config file.
This file structure can be a solution, but looks quite heavy. It could be great to add a git diff if it is possible between different runs (in order to know what exactly changed in the code) ?
It is not user friendly and more dev friendly.

What do you think ?