[TYPO3-english] file:current:alternative --> get text from original file

[Holger]

Hi there,

I have typoscipt for rendering images. for alternative text I use file:current:alternative.
I was expecting that the mechanism uses the text from the relation (which works perfectly) where I put the image and if there is no alternative text than it should use the alternative text that I entered in the original file data where I uploaded the image file.

In backend I can see, that the alternative text is used from the original file when I don't enter text when I use the image. But I can override the text.

Do I have to use different typoscript for the alternative text of the original file? I don't find anything in the api documentation.
regards