Please note this is not my own bug report (apart from the title), as this was split from another bug report where two bugs were reported. So I split them re:"one bug one thread". The post this was split from can be found here.
https://ludeon.com/forums/index.php?topic=28170.0
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(http://i.imgur.com/hn7LKur.jpg)
shot across the wall
1.When I built a wall in front of the door and leave the door open
2.across the wall in the house shooting is possible.
3.shooting must be impossible.
We should check this.
Wow, it's true.
1. Build a vertical wall with a doorway.
2. Set the doorway to 'held open' and walk a pawn through it so it's open.
3. Build a block of wall just west of the doorway (blocking passage).
4. Position shooter just east of doorway.
5. Shooter can now fire through the doorway, through the wall corner-touch points and hit targets just northwest and southwest of the doorway.
Note that it doesn't work without a doorway there.
(https://puu.sh/ttfPz/c759117631.png)
Moved to Mantis:
https://ludeon.com/mantis/view.php?id=2898
Thanks for reporting.