Clojurians Log v2

is it possible to undivert a datomic system, which has been diverted by datomic.dev-local/divert-system, or should i restart my repl, if i want to do another datomic.dev-local/import-cloud for example?

im also getting an error like this:

Execution error (IllegalArgumentException) at datomic.dev-local.impl/fn (impl.clj:490).
This client does not support dev-local import.

(dl/import-cloud
    {:source {:server-type :ion,
              :region      "ap-southeast-1",
              :system      "XXX",
              :endpoint    "<http://entry.XXX.ap-southeast-1.datomic.net:8182/>",
              :proxy-port  8182,
              :db-name     "DBDBDB"}
     :dest   {:server-type :dev-local
              :storage-dir :mem
              :system      "tmp"
              :db-name     "copy1"}
     :filter {}})

in the https://docs.datomic.com/cloud/dev-local.html#import-cloud example, the source and the destination datomic :system names and :db-names are different. do i understand well, that if i want to use dl/divert-system, then my imported copy should have the same :system and :db-name? it feels very error-prone, because if i forget to call diver-system, i might end up modifying the cloud db, instead of the local copy and im not sure how would i even notice the mistake. are there any videos / articles demonstrating this workflow?

I'm curious if there was some thought in the past about adding a query planner to datomic (where the user-specified clause ordering is not meaningful), and if so why it was decided against - and if it hasn't, would there be consideration of adding it?