If it is allowed to go too long, it will rise too much and become a soupy mess.
Be careful not to let it over ferment. If it is allowed to go too long, it will rise too much and become a soupy mess. It will not get a good rise when it bakes and resembles more of a pancake than a fluffy loaf. If this happens you can make stuffing, croutons, or bread pudding. It is not a total loss.