"On" lightning rods are now shaded even though they should not be

Up until 1.21.8 lightning rods that were in a powered state deliberately disabled shading such that they would appear fully bright. As of 25w31a, shading no longer appears to be turned off, and they appear dark like normal lightning rods. I think this is incorrect and do not believe this was an announced change, but rather an oversight when implementing the template system for oxidized rods.

To fix this an alternate model must be added which shares the standard rod geometry and mapping but switches off shading and ambient occlusion.