Shop strangeness
I was working on a little hat mod, and noticed something I don't quite understand.
I wanted my first hat to be available without any tech pre-reqs, so did not give it any. In game though, it would not appear in the shop, though it was available for designing units. If I assign a tech-prereq to it, with no other changes at all, upon gaining that tech it DOES appear in the shop.
Then I realised, I'd based it on the padded helm, and that never appears in the shop either, but is available for unit design, but for the life of me I can't see why. The gnarled club has no tech pre-reqs and turns up in the shop just fine.
Can someone explain to me exactly what's happening here?