Wrap apt to download lists if there are none
An alternative to #12238 would be to get apt to download the lists of packages if there are none on the system.
It would have all the advantages of shipping the lists #12238 except saving download time to people with no persistent storage. Installing additional package is probably more rare for people who don’t have a persistent storage than for people who have one.
It would have none of the disadvantages of #12238:
- It’s not making our ISO image bigger.
- It’s not distributing outdated lists that might make people miss security upgrades.