bootc install: kargs defined in bootc install config not picked up

[karelvanhecke]

bootc version: 0.1.9-3.el9_4 (x86_64)

config:

[install.filesystem.root]
type = "xfs"
[install]
kargs = ["console=tty0", "console=ttyS0,115200n8"]

The kernel args defined in the config file are not applied during bootc install to-filesystem.
When passed through arguments --karg=console=tty0 --karg=console=ttyS0,115200n8, they are properly applied.