this is to be expected, yes. I generally don't recommend using focus/skip as a way to separate test suites. That's not what those features are intended for. Test suites should be separated on the file system.

I totally get why you would want to do this though. I think what we really need is a separate concept, something like a "test selection" that's perpendicular to test suites. This would be a great thing for people to explore in a plugin.