[JimmXinu]

Originally Posted by Loba

Here is a G-rated story containing the Self-Harm tag: https://archiveofourown.org/works/20160832

And my INI: https://pastebin.com/m7qqaEeC

The line doesn't appear to be duplicated.

[archiveofourown.org]
...
include_in_warnings:freeformtags,warnings,bookmarksummary

Because you're including freeformtags in warnings, when warnings is evaluated, that line is attempted twice, once for freeformtags and then again for warnings

If you notice, the output line you posted is FFF: INFO:. It's not an error, just an FYI. You can safely ignore it.