Fix "RuntimeError: dictionary changed size during iteration" in sqlmodel_update()

Author: BartSchuurmans

sqlmodel/main.py

@@ -1001,9 +1001,8 @@ def sqlmodel_update(
                 else:
                     value = getattr(obj, key)
                 setattr(self, key, value)
-            for remaining_key in use_update:
+            for remaining_key, value in use_update.items():
                 if remaining_key in get_model_fields(self):
-                    value = use_update.pop(remaining_key)
                     setattr(self, remaining_key, value)
         else:
             raise ValueError(