[1.1.6] Superfluous powerpole placed when dragging over blocked territory

[AntiElitz]

There is an extra powerpole being placed that had no use.

See Video:
https://youtu.be/Wcl6IvbxkBg

[kovarex]

Well, the game tries to build the pole on the last possible position where you could build to give you better chance of connecting, I wouldn't change this behaviour generally.