Quarry: Check for valid facedir to fix server freeze #465 (#466)

Thomas Rudin

2018-12-09 701240bc3a17a73d73f3a96cd81e559d662ac42c

 technic/machines/register/common.lua

@@ -157,13 +157,13 @@
      if oldmetadata.inventory.upgrade1 and oldmetadata.inventory.upgrade1[1] then
         local stack = ItemStack(oldmetadata.inventory.upgrade1[1])
         if not stack:is_empty() then
            minetest.item_drop(stack, "", pos)
            minetest.add_item(pos, stack)
         end
      end
      if oldmetadata.inventory.upgrade2 and oldmetadata.inventory.upgrade2[1] then
         local stack = ItemStack(oldmetadata.inventory.upgrade2[1])
         if not stack:is_empty() then
            minetest.item_drop(stack, "", pos)
            minetest.add_item(pos, stack)
         end
      end
   end