Duplicating Materials by Repeatedly Cancelling and Restarting Construction

Issue description

When I mark a building for deconstruction, then cancel the deconstruction and immediately pause the construction after the trucks remove the material, all of the material is back. You can repeatedly do this to duplicate whatever the building materials are.

Reproduction steps

1. Load attached save "Dupe Example"
2. Select the lab named "Dupe Example Lab"
3. Cancel Construction
4. Wait for trucks to remove the material
   == Perform this next step quickly, before the construction bar depletes ==
5. Cancel Deconstruction
6. Immediately pause construction, before any trucks are close enough to start rebuilding
   This can be repeated indefinitely to duplicate as many building materials as you like. See the shipyard inventory for example, where tons of useless science have built up from duplicating.

Game version and build number

v0.7.8 (b481)

Operating system

Windows

Attachments

Dupe Example.save

Files not imported: Dupe Example.save

Additionally:
This can be performed with Unity, as well.

1. Pause the game
2. Mark something for deconstruction that is fully built
3. Use unity to instantly deconstruct
4. Click Cancel Deconstruction
5. Click Cancel Construction
   This can be repeated forever.

This was fixed as part of v0.7.9. Thank you!