• Fix TypeError when taking the union of typing_extensions.TypeAliasType and a
  typing.TypeAliasType on Python 3.12 and 3.13.
  Patch by Joren Hammudoglu.
• Backport from CPython PR #132160
  to avoid having user arguments shadowed in generated __new__ by
  @typing_extensions.deprecated.
  Patch by Victorien Plot.