[RSS Feed/News] Pub controller class calls init() for some reason when using fastUpdate()

[XenForo]

In my server logs, I'm seeing this message as part of an addon that I'm working on

PHP:

Error: Call to undefined function Asprin\FB\Pub\Controller\int() src/addons/Asprin/FB/Pub/Controller/Foo.php:293

The stack trace is as follows:
PHP:

#0 src/addons/Asprin/FB/Pub/Controller/Foo.php(201): Asprin\FB\Pub\Controller\Foo->swapThem(391, 396, 7)
#1 src/XF/Mvc/Dispatcher.php(352): Asprin\FB\Pub\Controller\Foo->actionCheckSwap(Object(XF\Mvc\ParameterBag))
#2 src/XF/Mvc/Dispatcher.php(263)...

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