Preserve users when realm is overridden

Hey, I have multiple environments - DEV, Stage and Production.
My goal is to export the realm from DEV, and import it to Stage, to synchronize the settings.

I configured a kubernetes init container that does import of a new configuration with --override=true setting.

But, as I see from logs, it actually deletes the existing realm before import the new settings, and with it, the existing users are gone too.

Is there any way to preserve the users?

PS. Expecting to have hundreds thousands of users in DB, so, export existing users before configuration update and import them after would be a pretty consuming operation.