3d armor shields in i3 crash lock minetest once world is restarted

[wsor4035]

Describe the bug reported on behalf of another user minetest is crash locked by i3+3d_armor+restart

To Reproduce

• turn on progressive mode
• give yourself shields:shield_wood
• put in armor slot in i3
• restart world
• get locked out due to crash

Screenshots If applicable, add screenshots to help explain your problem.

Additional context 3d armor issue: https://github.com/minetest-mods/3d_armor/issues/135

[wsor4035]

here is a patch to at least get back into your world. this might just mask the actual issue tho, havent dug into it

diff --git a/src/gui.lua b/src/gui.lua
index 7f654f2..1f83748 100644
--- a/src/gui.lua
+++ b/src/gui.lua
@@ -1576,7 +1576,7 @@ local function get_items_fs(fs, data, player, full_height)
            local item_btn = fmt("item_image_button", X, Y, size, size, name, item, "")

            if recipe_filter_set() and data.itab == 1 then
-               if data.items_progress[item] then
+               if data.items_progress and data.items_progress[item] then
                    insert(fs, item_btn)
                else
                    local col = "^\\[colorize:#232428^\\[opacity:245"

[TristanCottam]

I encountered this error on a previously working world of mine which already had i3_progressive_mode enabled before the bug.