Version: (make sure you are on the latest version before reporting):

• Minecraft: 1.18.2
• Forge: 40.1.30
• Powah: 3.0.2 Beta

Issue description:

Block placers can create a reactor from only one single reactor block

Steps to reproduce:

Use a block placer to place down the first block of the reactor, the build sequence takes over afterwards

Is this a crash?, please includ it here: (Recommended to use Gist)

https://i.imgur.com/wOhMtqE.mp4
https://i.imgur.com/jBZGNi6.mp4