Solution prompt should blink away when I mark a solution

[ganncamp (G Ann Campbell)]

I just marked a solution to a thread in our internal instance and then happened to notice that I was still being prompted to mark a solution.

It goes away if I reload the page, but I expected it to go away sooner.

[davidb]

This has been fixed with this change:

https://github.com/discourse/discourse/commit/574028bff8e1501d0003ef931c7e071173a9d96a