Re: Simple Q&A Pathfinder (By RAW) I
A206 (Deleted old post; I misread the question)
Since bloodline spells are "in addition to the number of spells given on the sorcerer table," so I think, technically, you have Burning Hands listed twice for spells known. That would allow you to switch the first with another spell known at 4th level.
Avatar by A Rainy Knight
DMs get experience too, you know. Every time a player dies, they level up.