Issue description

See the blueprint supports under the working pipe ...
Just the graphics seems not ok, the pipe kept working.
After reloading the save game, graphics was fine, too.
Expected behavior
Even with a planned/ cancelled upgrade transports should keep their supports.
Reproduction steps
What I remember:
- I had built the three pipes. The left one (water) is in use.
- I requested to upgrade the left pipe.
- Before the actual upgrade started (lack of material), I added the connection to the mixers.
- I cancelled the upgrade for the lower half of the pipe.
After everything was built/upgraded as intended I discovered the blueprint supports.
Game version
v.0.4.11