This was recently addressed via https://salsa.debian.org/kernel-team/initramfs-tools/-/commit/40694280efc5c3d40dbb6d89dbdc7b2ae69f4968
and https://salsa.debian.org/kernel-team/initramfs-tools/-/commit/7f2ed354cc8f966de444b8c278c208ea4e13ef75 Looks like this can be closed as "fixed" now.
