Ensure we subscribe to gloas topics 1 epoch in advance #9041
Description
Description
Currently at fork boundaries we subscribe to new fork topics two slots before the fork. Because of the way proposer preferences work in Gloas, we'll need to subscribe to the proposer pref topic one epoch in advance. It's easier to just subscribe to all fork topics in general one epoch in advance. I tried implementing this, but noticed that this change causes issues with the fallback simulator. I didn't spend too much time investigating why.