This is the use case:
I am deleting two posts from a user and want to see if he posted more on the next page. No, he did not, but the bar is gone to delete the original two. Perhaps as deigned but have to do "workarounds" to delete them. Check/uncheck on that page? Back button? Thanks for the post, I thought it was a bug and remembered, that's how it currently works.
I would think it would stay intact as, it's pretty common to navigate pages and get to where there is none needed, but you need to moderate what you already checked.