More Fixes on Experimental

Fixed a few more player-reported issues on the experimental branch (will push to default once it sits for a day with no issues). Here's the quick list:

• gluttony would sometimes just get stuck after breath attack

• what items explanations/tutorials you had seen already wasn't saving correctly and so they would pop up again if you reloaded. super lame/annoying.

• items you had equiped when you loaded a game were cosmetically there, but didn't provide any benefit.

• very obscure bug related to starting a boss cutscene during respawn (you could move/fight during the cutscene). this one should be fixed now, but is hard for me to repro, so let me know if you still see it.