I think it is done (at least in my tests, I would be glad if you test it there as well). Version 0.7.18 should be released at any moment in the register. Thanks for reporting that, and let me know if you find any other issue, or have any other suggestion concerning the use of CellListMap.
I would also love that we create some guidelines on how to integrate it with Agents.jl. If you provide us a minimal working example, I will be glad to help (even by modifying something on CellListMap if needed).