v0.2.3d: further tweaks, now actually fixes blacksmith bug

src/com/shatteredpixel/shatteredpixeldungeon/levels/PrisonLevel.java

@@ -55,7 +55,7 @@ public class PrisonLevel extends RegularLevel {
 	}
 	
 	@Override
-	protected void assignRoomType() {
+	protected boolean assignRoomType() {
 		super.assignRoomType();
 		
 		for (Room r : rooms) {
@@ -63,6 +63,8 @@ public class PrisonLevel extends RegularLevel {
 				r.type = Type.PASSAGE;
 			}
 		}
+
+		return true;
 	}
 	
 	@Override