I've been farming in a Haz RES all week. Yes, they try and ram you. Is it a problem? No. The FAS and FDS will fly straight at you with guns blazing. Use your vertical thrusters to drop out of the way. Other ships do it, but always veer away at the last moment. Many ships now overshoot when scanning you, so, when you scan them, put throttle to full reverse if they're anywhere near and be ready to use vertical thrusters if it looks like they won't stop. They will be trying to slow down, so you can reduce reverse throttle once the situation is under control. There's also a few random rammings from other ships when you're in a dogfight with a ship that's not the one that rams you. It would be boring if RES farming was too easy. Personally, I love these disruptions. I had two bounties on me this week that weren't my fault. You wouldn't have wanted to be in the room with me when they happened, but now, looking back on it, it was just a bit of fun. It just means that you have to move on and do something new. I was lucky I did move on because I found an even better system for hunting.
I agree with other people that this type of ramming is new, but you soon get used to dealing with it.