emerge gitlab-18.3.1 fails to install OpenRC init files

The following error shows up in the build log:

Installing OpenRC init.d files
sed: can't read /var/tmp/notmpfs/portage/www-apps/gitlab-18.3.1/files/gitlab.init.puma_start: No such file or directory

So the bug is due to some of the gitlab.init.* files incorrectly retaining the version number from the earlier naming scheme.

Edit: Actually, after taking a closer look, the bug is due to the sed command before newinitd having the same file as both its input and output, which results in an empty output file.