Comment 51 for bug 895230

Ok, used PoweredBy= and it mostly works now.
However, using this flag in issue 1401 causes units that get unpowered while being carried by a magnetron to "sink" past the ground

Also, Non-Hovering harvesters continue their gathering and returning operations even though the powering building, the refinery, lost power. Hovering harvesters does not have a single problem whatsoever and bugs that were associated with Westwood's version of powered units logic and hovering harvesters are gone, oddly enough.