Hi!
I think I have come across a part of this bug in 38a as well:
In order to have my military near one of the possible assault routes, I built a hut to house the barracks:
First, I built walls around an area of about 5x6 tiles, I think. A complete set of walls, only breached by a door to the north and to the south. No windows, fortifications or other things, just walls and doors.
Then I had the floor there engraved and ordered floors to be built above that area (the engraving was ordered parallely, but finished much sooner, of course).
As the roof was being built, I started moving beds into the room.
When there was just a single floor tile missing in the middle of the "roof", I made one of the beds a room and then turned it into barracks filling the entire available room except for the one tile in the middle.
After the "roof" was finished, I resized the room.
Now, the room is "above ground" - okay, "inside" - okay, "light" - ? Shouldn't the room be "dark"?
While I am mentioning that project, was it necessary for me to build floors on the walls as well, or could I have just left them the way they were? After all, dwarves seemed to be able to walk on top of the walls, and if I hadn't put the floors on them, I could have put some nice fortifications there.
Deathworks