6
- The set expression constructor will now flatten its first argument
7
if it is of the same type. The resulting expression tree uses less
8
stack when compiling so reduces the chance of hitting Python's
9
recursion limit (bug #242813).
13
- Remove a leak when mutable variables (ListVariable or PickleVariable
14
instances) are collected before store.flush, leaving hooks behind them.
15
- The ResultSet min, max and sum methods now work correctly when the
16
result set is empty and the column has allow_none=False set.
17
Previously this resulted in a NoneError (bug #457801).
18
- MySQL reserved words are handled properly (bug #433833).