Repeat Visitor: allow wide/full alignment

I noticed that when blocks (eg: cover block) that can be set to wide or full alignment are nested within a Repeat Visitor block are set as such (ie: wide or full), then the entire Repeat Visitor block doesn't show up at all on the front end - at least on wpcom. Or if the block does show, then the full/wide alignment of the nested block isn't respected.

Would it be possible to allow the Repeat Visitor block to have wider alignments?

The reason I'm asking is because I think it could get a lot of use as a "splash page" function. On the wpcom side of things I've encountered a couple of people asking how to add a splash page and I really think that we could help them achieve that kind of effect using just a block set to disappear after the initial visit.

I made a quick example here, complete with page jump "enter" button to scroll down to the main site contents:
https://temp87765.wordpress.com/

The reason the question came up was because I wanted to nest the main site contents in **another** repeat visitor block - the "find out more" button there could instead be just a link to the front page again, effectively refreshing it and pushing the visitor past the first-visit threshold which I'd set the "splash" Repeat Visitor block to hide after, and the main site contents to show instead. As you can see, I've got a full-width cover block there, and nothing shows currently if I nest that content within a repeat visitor block.

Start from the Repeat Visitor block and reproduce the issue with a nested Cover block set to wide or full alignment, using the linked example as context. Check the front-end result and verify that the Repeat Visitor content renders and preserves the nested block's wider alignment.

Written by the indexing model from the issue text.