fix extra networks metadata failing to work properly when you create the .json...

fix extra networks metadata failing to work properly when you create the .json file with metadata for the first time.

modules/ui_extra_networks.py

@@ -134,7 +134,7 @@ def get_single_card(page: str = "", tabname: str = "", name: str = ""):
         errors.display(e, "creating item for extra network")
         item = page.items.get(name)
 
-    page.read_user_metadata(item)
+    page.read_user_metadata(item, use_cache=False)
     item_html = page.create_item_html(tabname, item, shared.html("extra-networks-card.html"))
 
     return JSONResponse({"html": item_html})
@@ -173,9 +173,9 @@ class ExtraNetworksPage:
     def refresh(self):
         pass
 
-    def read_user_metadata(self, item):
+    def read_user_metadata(self, item, use_cache=True):
         filename = item.get("filename", None)
-        metadata = extra_networks.get_user_metadata(filename, lister=self.lister)
+        metadata = extra_networks.get_user_metadata(filename, lister=self.lister if use_cache else None)
 
         desc = metadata.get("description", None)
         if desc is not None: