thread safe extra network list_items

modules/ui_extra_networks.py

@@ -1,6 +1,7 @@
 import os.path
 import urllib.parse
 from pathlib import Path
+from threading import Lock
 
 from modules import shared, ui_extra_networks_user_metadata, errors, extra_networks
 from modules.images import read_info_from_image, save_image_with_geninfo
@@ -94,6 +95,7 @@ class ExtraNetworksPage:
         self.allow_negative_prompt = False
         self.metadata = {}
         self.items = {}
+        self.thread_lock = Lock()
 
     def refresh(self):
         pass