Has there been any progress on this? I have a repeater field with a minimum of 2 items and in the repeater a WYSIWYG block, which have default (some Lorem ipsum text) and when I add a block to the Gutenberg editor a completely empty block is shown. If I click the editor and edit the content the preview becomes visible.
The code above does nothing for me (or do I need to change some values to my field names?)
I made a screencast to better illustrate the issue. As you can se when you edit the block it becomes visible
https://www.youtube.com/watch?v=IzM-OMoHbWQ
