Ammo doesn't handle fake fomods like SkyUI

[cyberrumor]

This should be easy to fix, just need to make mod.py not tag a mod as a fomod if ModuleConfig.xml can't be found. This might cause issues with other mods down the road, but it will at least fix one of the most popular mods.

[cyberrumor]

Fixed in commit 32b5f8340a0f67827caafffe6880b22052c5a3e6