The official tag is only used on the main plugin/theme/theme component topic itself, not on the peripheral ones. So if you find a bug with solved it would only get the solved tag and not the official one as well (it cuts down on the noise when you want to look at a list of all of our official customisations).
I can fervently wish for this. 
It is pretty slow-going a lot of the time, especially fitting it in to all the other things that need doing. Having a magic button that would do it all for me would be excellent.