[1.0.1954] Power conduit (building) deconstructing when walls built over

[fancymoko]

1. Circumstances - Walls and power conduit placed concurrently on the same tile. (it works better to place 20 or so at the same time, the bug is more likely to occur)
2. The builder and the hauler will place both the steel needed for the conduit and the material for the wall needed (as expected). But then, while the builder is building the wall blocks, the hauler will deconstruct the power conduit blueprint, deleting the steel placed and forcing you to replace the conduit blueprints.
3. Expected - the hauler will do nothing once the blueprints are in place and will continue hauling other things as needed.
4. Place about 10 walls in a row with power conduit running underneath them (at the same time). The haulers and builders will bring the materials to the building site as needed, but if the blueprints for the conduit are finished before the walls and the builders can get there to build them, the haulers will deconstruct the power conduit.
5. I've been able to reproduce this with 100% consistency across multiple games, I don't think a save file is needed.
6. No "real" error - I'm not sure the log file will help here.

[TheXev]

I was actually just making a short video clip that shows this happening!  This is actually a long-standing bug I noticed in B18 but didn't have time to report.  I finally took the time to create a video.  I am saving it right now and will upload it as an unlisted youtube clip shortly.

[TheXev]

https://www.youtube.com/watch?v=aPp9QcUvQUE

Here is my video demonstrating this bug in action.

[AileTheAlien]

I was wondering what was up with my power-lines! (Although only I had it happen about 1 in 7 tiles.)