refactor: Better align the items and reload functions with the internal caching mechanism

Author: eliasbenb

Diff for: plexapi/library.py

@@ -2235,17 +2235,20 @@ def _loadData(self, data):
 
     @cached_data_property
     def items(self):
+        if self.more and self.key:  # If there are more items to load, fetch them
+            items = self.fetchItems(self.key)
+            self.more = False
+            self.size = len(items)
+            return items
+        # Otherwise, all the data is in the initial _data XML response
         return self.findItems(self._data)
 
     def __len__(self):
         return self.size
 
     def reload(self):
         """ Reloads the hub to fetch all items in the hub. """
-        if self.more and self.key:
-            self.items = self.fetchItems(self.key)
-            self.more = False
-            self.size = len(self.items)
+        self._invalidateCachedProperties()
 
     def section(self):
         """ Returns the :class:`~plexapi.library.LibrarySection` this hub belongs to.