5532065d06
Previously setting `allowKeysForGroup = true; group = "foo"` would not apply the group permission change of the certificates until the service gets restarted. This commit fixes this by making systemd restart the service every time it changes. Note that applying this commit to a system with an already running acme systemd service doesn't fix this immediately and you still need to wait for the next refresh (or call `systemctl restart acme-<domain>`). Once everybody's service has restarted once this should be a problem of the past.
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