Crash related to the discover/Unlock update

[ChromaPIE]

Crash log: https://mclo.gs/6de7DAX

Culprit in main.lua:

    function SMODS.GameObject:inject_class()
        local o = nil
        for i, key in ipairs(self.obj_buffer) do
            o = self.obj_table[key]
            boot_print_stage(('Injecting %s: %s'):format(o.set, o.key))
            o.atlas = o.atlas or o.set

            if o._discovered_unlocked_overwritten then
                assert(o._saved_d_u) -- L3975 mentioned in the crash report
                o.discovered, o.unlocked = o._d, o._u
                o._discovered_unlocked_overwritten = false
            else
                SMODS._save_d_u(o)
            end

            -- Add centers to pools
            o:inject(i)

            -- Setup Localize text
            o:process_loc_text()

            sendInfoMessage(
                ('Injected game object %s of type %s')
                :format(o.key, o.set), o.set or 'GameObject'
            )
        end
    end

[english5040]

Pretty unclear what's going on given that there are so many mods in that list, unfortunately. something to look at among those mods would be any that involve init_item_prototypes