I had an opponent a few weeks ago that said that when you jam someone you have to declare the token type (green or lock) that you want it to affect regardless of whether the target has either of those token types yet. Since then I've tried to find this in the rules and haven't found it.
1. Can anyone cite the rule or official clarification on this?
1A. If that's true and I'm jamming someone who has a target lock, but no green token, can I declare "green token" and allow them to keep their lock?