Issue description

This is easier to reproduce when the game is in a paused state. These are the steps to reproduce this issue with the foundations being left behind. I will refer to three states, as built-state (completed), blue-state (ghosted but unpaused) and gray-state (ghosted).
Step 1)

Step 2)

Step 3)

Step 4)

Step 5)

Reproduction steps
- Have any conveyor belt in completed state with a Connector on it.
- Copy the connector using the copy/paste tool.
- Place the copied section on top of the existing belt.
- The copy/paste fails to put the connector in the correct spot.
- While newly placed connector is in blue state, delete it and it will create the permanent foundation.
Summary: Any time a connector is deleted while in blue state it will leave the small foundation behind. Does not seem to happen to pipes. I also reproduced the bug that the other guy was having with the copy/paste not placing the connector in the correct spot while trying to post this bug reproduction. Two in one!
Game version and build number
v.0.5.3d
Operating system
Windows