When autobuilding a ghost with modules, the modules are placed in even if they dont exist in my inventory.
In every module slot there is a new existing module and a ghost that bots will try to place

So I can now generate something I haven't even researched like legendary prod 3s.

This is with space age, no other mods

Earlier I was wondering why this only sometimes worked and now I found the reason.
So actually better tiers of modules can't be cheated but better quality can.
It only checks for normal quality modules if trying to autobuild higher quality modules.

So if you have 3 pieces of NORMAL quality module level X in your inventory, you can autobuild 3 pieces of ANY quality module.

Thanks for the hint. I was already wondering, what could be the cause, but quality seems to have some more things to check, before inserting.

I think row 297 of control.lua can fix the issue

local to_insert = math.min(player.get_item_count(name), required)
=>
local to_insert = math.min(player.get_item_count({name = name, count = required, quality = quality}), required)

(almost did a pull request to git already, but ran into some ssh issues....)

This should be fixed now