mod_report_forward: Fix traceback on error message passed to datetime function If archive:get() returns an error, e.g. because it can't find a message with the given ID, it may return e.g. nil, "item-not-found" or similar where the error condition ends up in reported_message_time, which gets passed to util.datetime, which thus ends up doing math to a string or error object.

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labels:
- 'Stage-alpha'
summary: 'Enable ProtoXEP: Reminders support'
...


Introduction
============

`mod_reminders` implements ProtoXEP: Reminders.

Usage
=====

Place the sibling `mod_reminders.lua` somewhere under your
`plugins_path`.