Separated mesecons wire does not turn off when connection to power source is destroyed

[Wuzzy2]

How to reproduce:

• Place a long straight line of mesecons
• Put a power plant at one end to activate the wire
• Near the center of the wire, detonate TNT

Expected result: The wire which is now separated from the power plant should turn off
Actual result: All wires stay turned on

Suspicion: This is not limited to TNT but also could happen when the wire is destroyed (not dug) in general.

Similar experiment: Same as before, but this time you only blow up the power plant. All wires stay turned on.

[Desour]

#356 maybe fixes the part with the TNT. Maybe an on_destruct should be added.

[numberZero]

Rotation is ignored as well; see #297

[numberZero]

TNT part is fixed. VoxelManip can’t be fixed, that’s the expected behavior: nothing around is told the change, even the light may not be updated.

If the bug appears again with anything other than VoxelManip, reopen this issue.