RichMedia parser: do not set a cache TTL for unchanging errors
[akkoma] / priv /
drwxr-xr-x   ..
drwxr-xr-x - gettext
drwxr-xr-x - repo
drwxr-xr-x - scrubbers
drwxr-xr-x - static
drwxr-xr-x - templates