I can persist tabmanager state

src/myfasthtml/core/dbmanager.py

@@ -42,14 +42,7 @@ class DbObject:
     self._name = name or self.__class__.__name__
     self._db_manager = db_manager or InstancesManager.get(self._session, Ids.DbManager, DbManager)
     
-    # init is possible
-    if self._db_manager.exists_entry(self._name):
-      props = self._db_manager.load(self._name)
-      for k, v in props.items():
-        if hasattr(self, k):
-          setattr(self, k, v)
-    else:
-      self._save_self()
+    self._finalize_initialization()
   
   @contextmanager
   def initializing(self):
@@ -58,8 +51,8 @@ class DbObject:
     try:
       yield
     finally:
+      self._finalize_initialization()
       self._initializing = old_state
-      self._save_self()
   
   def __setattr__(self, name: str, value: str):
     if name.startswith("_") or getattr(self, "_initializing", False):
@@ -73,6 +66,13 @@ class DbObject:
     super().__setattr__(name, value)
     self._save_self()
   
+  def _finalize_initialization(self):
+    if self._db_manager.exists_entry(self._name):
+      props = self._db_manager.load(self._name)
+      self.update(props)
+    else:
+      self._save_self()
+  
   def _save_self(self):
     props = {k: getattr(self, k) for k, v in self._get_properties().items() if not k.startswith("_")}
     if props:
@@ -103,11 +103,14 @@ class DbObject:
     
     properties |= kwargs
     
-    with self.initializing():
-      for k, v in properties.items():
-        if hasattr(self, k) and k not in DbObject._forbidden_attrs:  # internal variables cannot be updated
-          setattr(self, k, v)
+    # save the new state
+    old_state = getattr(self, "_initializing", False)
+    self._initializing = True
+    for k, v in properties.items():
+      if hasattr(self, k) and k not in DbObject._forbidden_attrs:  # internal variables cannot be updated
+        setattr(self, k, v)
     self._save_self()
+    self._initializing = old_state
   
   def copy(self):
     as_dict = self._get_properties().copy()