TYPO3 Core

Imagine the following scenario:

An uncached plugin renders an image via Fluid's <f:image> view helper.
The page is cached, but the plugin isn't, resulting in an <!--INT_SCRIPT> marker.

When the page is loaded for the first time, the image is shown fine:

<img src="/fileadmin/_processed_/b/f/myimage_xxxxxx.png">

When the page is refreshed it is pulled from the cache and the image is now missing.
TYPO3 missed adding the neccessary absRefPrefix:

<img src="fileadmin/_processed_/b/f/myimage_xxxxxx.png">