fish saves its history atomically by writing an entirely new file to disk, and swapping it in That's so you get sync'd histories across one user's logins? Goo

fish saves its history atomically by writing an entirely new file to disk, and swapping it in That's so you get sync'd histories across one user's logins? Good feature, but I need my history. It's invaluable to me. Still, maybe 250k lines is enough. Is there a way I could bump that up and judge for myself the consequences?