Error message related to `journal-nocow.conf` during `nixos-install`

While running nixos-install, I get the following messages, actually a total of 3 times:

setting up /etc...
/etc/tmpfiles.d/journal-nocow.conf:26: Failed to resolve specifier: uninitialized /etc detected, skipping
All rules containing unresolvable specifiers will be skipped.

Should this be reported as a bug? What are the consequences of the indicated problem?

should be fixed with tmpfiles: suppressing `uninitialized /etc` warnings on offline systems · Issue #24655 · systemd/systemd · GitHub on nixos-unstable