145 | | * If the object's primary key attribute is set to a value that evaluates to |
146 | | ``False`` (such as ``None`` or the empty string), Django executes a |
147 | | ``SELECT`` query to determine whether a record with the given primary key |
148 | | already exists. |
| 145 | * If the object's primary key attribute is set to a value that |
| 146 | evaluates to ``True`` (whatever excluding ``None`` or an empty |
| 147 | string), Django executes a ``SELECT`` query to determine whether a |
| 148 | record with the given primary key already exists. |