RichTextEditor full height difference in VerticalLayout vs FormLayout

For whatever reason if I add a RichTextEditor and make it full height (setHeightFull to both the RichTextEditor and VerticalLayout) then the editor uses up all the space. However if I use a FormLayout and do the same then the RichTextEditor only uses a small portion, maybe about the equivalent of 5-6 lines. I’ve also tried to go through the FormItem but I can’t see a way to do this like you can do with colspan. Using a VerticalLayout wrapper also made no difference. How do I get it use up all the remaining height in a FormLayout like it does in a VerticalLayout?

FormLayout doesn’t support full-height elements – its layout model is optimized for more traditional form scenarios

I propose you place the RTE outside the FormLayout instead