Each Jarl server has its own certificate names, but a host keeps one
saved NAME.json (and, by default, one /etc/jarl/certs/NAME). Asking a
second server for the same name overwrote the first one's settings and
files, so the first certificate quietly stopped being renewed. Now that
is refused, as is a --dir holding another certificate's files;
--replace takes the name or directory over. A --dir another saved
certificate uses is always refused.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>