Describe the bug
non-ME P2P disappear when cable placed on back

To Reproduce
Place down any p2p tunnel besides the ME one on the ground with no cable connected. Then click on the back with a glass cable. The p2p tunnel will vanish and there will be no way to get it back.

Expected behavior
I expected either the cable to place down on the back of the p2p, or for the p2p to turn into a ME p2p

https://pastebin.com/X3HDhLvu

• Environment:
  Windows 10,
  Intel core i7-8700,
  Nvidia 1080 ti,
  16 gb RAM

Will be fixed by #5251, but thanks for reporting anyway!

Closed by #5251.