When bread bakes, steam develops inside the dough. Since this loaf isn’t scored on the surface (to preserve the cinnamon swirl), there’s no outlet for the steam to escape. Consequently, the steam may create gaps between the cinnamon swirl and the bread. To help remedy this, I brush the outer half inch edges with water prior to rolling the dough. An egg was is another method used for this issue, however I have found both ways to be a hit or miss.