TYPO3 Core

How to reproduce:

1. Install css_styled_content on 7LTS, 8LTS or master
2. create two content elements, with an image each. Set a caption (field:description) for each image
3. The frontend shows both captions as expected.
4. Remove the caption of the first image
5. The frontend unexpectetly does not sho the 2nd caption either

This is a regression and was introduced with #77645 in both LTS branches.

Note: I did not test css_styled_content on master but I assume it is broken there too.

fluid_styled_content is not affected as the rendering is done completly differently.