notifyd generates error on many messages, not all, from Signal Desktop, leaking message contents to the system log.  I think it happens when message contains emojis.

I noticed in system logs *full text* messages from Signal inside error messages from xfce4-notifyd.  I've reported this to Signal, but I wonder if notifyd could sanitize the error text?  This is sort of a security issue, since signal is counting on notifyd passing it to the user, but it's unexpectedly ending up in the system logs.