Wall mined out next to Deep Water is considered Indoors

[milon]

Game save is attached.  RimWorld A14 DRM-free version, no mods, Win 10 x64.

Background:
I mined out a natural rock wall from a room (to be able to place an AC unit, but it's a gaping hole right now). This was during a Heat Wave when it was over 30'C outdoors, and indoors was 18'C.

What happened:
The temperature indoors stayed at 18'C and the game still said it was Indoors.

What I expected to happen:
I expected the room to become Outdoors and the temperature to rise significantly.

Further Detail:
Mousing over the terrain revealed that the hole-in-the-wall spot (where the AC blueprint is) was Indoors, and the nearby Deep Water tiles are indoors too.  I expected them to be Outdoors.  The deep water tiles one cell over are correctly considered to be Outdoors.

FWIW, this has persisted since Alpha 8.  Sorry I forgot to report it.  >_<
https://ludeon.com/forums/index.php?topic=8910.msg88023#msg88023 (see in-game July 4, Year 1 "Transcriber's Note").

EDIT - Attaching screenshot

[attachment deleted by admin - too old]

[ItchyFlea]

Bug confirmed. I have listed it on Mantis here: https://ludeon.com/mantis/view.php?id=2606 Thank-you for reporting this.