lbu commit ignores changes to /etc/init.d
I'm setting up a new Raspberry Pi 4 system, following the instructions in the wiki. Everything is working fine, except lbu commit is ignoring any changes made to /etc/init.d. For example, I have run setup-alpine and chosen dropbear as an ssh server. All the dropbear configuration files and changes to the openrc run levels are saved by lbu commit, but the init script /etc/init.d/dropbear is missing from the overlay.
I have tried explicitly including /etc/init.d using lbu include, but that didn't work.