TYPO3 Core

sorry for my missleading headline.
The image-viewhelper add everytime an empty(!) alt-attribute to the img-tag.
The if-condition is wrong and make thing going south. (see patch)

            // The alt-attribute is mandatory to have valid html-code, therefore add it even if it is empty
            if (empty($this->arguments['alt'])) {
                $this->tag->addAttribute('alt', $image->hasProperty('alternative') ? $image->getProperty('alternative') : '');
            }

The condition is correct. However, the code in the conditin block is wrong and may add a empty string if therr is also no alt description for the image.

Empty alt description attribute ahould be completly removed if empty.

Thanks for the feedback and sorry for the stolen time. You are right.
Please close this embarrassing ticket as quickly as possible. I had read something completely wrong.