Media not rendered in ckeditor

hydra → changed the visibility of the branch 3516812-media-not-rendered to hidden.

Okay I found out that this is actually working in ckeditor, when the image_sizes/core library gets loaded. For some reason this is not happening when embedded via ckeditor, therefore I added it as a dependency when adding media. It might happen that it gets loaded reasonless, but that was the best I could come up with.

I can confirm that after applying the patch the image is rendered again.