mod_sasl2_fast: Fix harmless off-by-one error (invalidates existing tokens!) Problem: This was causing the key to become "<token>--cur" instead of the expected "<token>-cur". As the same key was used by the code to both set and get, it still worked. Rationale for change: Although it worked, it's unintended, inconsistent and messy. It increases the chances of future bugs due to the unexpected format. Side-effects of change: Existing '--cur' entries will not be checked after this change, and therefore existing FAST clients will fail to authenticate until they attempt password auth and obtain a new FAST token. Existing '--cur' entries in storage will not be cleaned up by this commit, but this is considered a minor issue, and okay for the relatively few FAST deployments.

# Introduction

This module adds a room configuration option to hide inline media from MUCs and
display them as links instead.

This can be useful in public channels where content posted by users should not
be shown by default.

**Note:** You could consider the more useful [mod_muc_restrict_media] instead,
which allows affiliated users (e.g. members, admins, owners) to still send
inline media.

# Configuring

## Enabling

``` {.lua}
Component "rooms.example.net" "muc"
modules_enabled = {
    "muc_hide_media";
}
```

## Settings

A default setting can be provided in the config file:

``` {.lua}
muc_room_default_hide_media = true
```