Steps to reproduce:
1. Have red wire in toolbar slot 1 and green wire in slot 2
2. Connect the red wire to a power pole and run it to a second power pole
3. Now press '2' to switch to the green wire
Notice that the anchor point on the pole has been lost.
Expected result:
Anchor point is kept and you can switch between colours.
Again, this is a minor issue but I keep stumbling on it when working with wires now
