[knot-dns-users] Plain text copy of zone files

Hello Knot developers, I've added some zones to my Knot configuration like this: zones { example.com { file example.com; xfr-in master; notify-in master; } } After Knot has started up, I see the following files in the storage directory: example.com example.com.db example.com.db.crc example.com.diff.db I see that Knot keeps a copy of the zone in a compiled form. Why does it also dump the plain text zone? This would be okay for a small number of zones, but if I want to load a few thousand zones, then all those plain text copies of the zone files will take up unnecessary space on the disk. I tried to turn off the plain text copy by removing the "file example.com" config line, but then Knot created a file called "example.com..zone" (yes, with two dots) to keep a plain text copy of the zone anyway. Is it possible to turn off this plain text dump of the zone? Regards, Anand