Bug Fix when loading item ids with buffers in sub inventories

Closes #73

When loading items in subinventories their ID is extracted as a string.
But in some edge cases for some strings (see capital C) the editor loads this wrongly because the DC4 character is in the string. For those special strings it backups the original binary string buffer it loaded. But now we tried to save an object containing that buffer as a string, which failed.
We now check if the item ID is contained within such a buffer.

Author: NetroScript

main.py

@@ -786,6 +786,12 @@ def get_inventory(inv):
     for _ in inv:
         item = dict()
         item["id"] = inv[i]["v"]["id"]["v"]
+
+        # The item ID can also be not a string but an object when during loading a error was encountered and it was
+        # "fixed" and the original buffer saved, then the id is of course the item name which was fixed up
+        if isinstance(item["id"], dict):
+            item["id"] = item["id"]["string"]
+
         item["durability"] = inv[i]["v"]["_params"]["v"]["_durability"]["v"]
         item["amount"] = inv[i]["v"]["value"]["v"]
         item["position"] = i
@@ -829,7 +835,10 @@ def edit_inventory(inventory, new_items, shash):
                 temp_item = deepcopy(fallback_item)
 
             # For the case the id is not in the serialized strings we just reapply it
-            temp_item["v"]["id"] = modify_value_type(shash, temp_item["v"]["id"], item["id"])
+            # We do some extra checks, hopefully not breaking an item id which would need a custom buffer due to the
+            # D control character which capital C seems to contain in the item ids
+            if "C" not in item["id"] or len(item["id"]) < 30 and item["id"] not in savefiles[shash]["serializer"]:
+                temp_item["v"]["id"] = modify_value_type(shash, temp_item["v"]["id"], item["id"])
 
         # Set additional parameters which might have been changed like the amount of the item
         temp_item["v"]["_params"]["v"]["_durability"] = modify_value_type(shash, temp_item["v"]["_params"]["v"]["_durability"], item["durability"])