I can persist tabmanager state

tests/core/test_db_object.py

@@ -70,7 +70,25 @@ def test_i_can_init_from_dataclass(session, db_manager):
   assert len(history) == 1
 
 
-def test_i_can_init_from_db(session, db_manager):
+def test_i_can_init_from_db_with(session, db_manager):
+  class DummyObject(DbObject):
+    def __init__(self, sess: dict):
+      super().__init__(sess, "DummyObject", db_manager)
+      
+      with self.initializing():
+        self.value: str = "hello"
+        self.number: int = 42
+  
+  # insert other values in db
+  db_manager.save("DummyObject", {"value": "other_value", "number": 34})
+  
+  dummy = DummyObject(session)
+  
+  assert dummy.value == "other_value"
+  assert dummy.number == 34
+
+
+def test_i_can_init_from_db_with_dataclass(session, db_manager):
   @dataclass
   class DummyObject(DbObject):
     def __init__(self, sess: dict):