This issue broke cloudinit: https://github.com/canonical/cloud-init/issues/4481 The fix is in 23.4.1 but not in quarterly branch, which is the branch that packages are built from in official images. I'm happy to do the commit, just need maintainer approval.
^Triage: maintainer approval received.
committed in f5c6e5909d89660d61b329407b6ce7fb9eaa8fff *** This bug has been marked as a duplicate of bug 277708 ***