TypeAliasType raises TypeError when union'd with typing.TypeAliasType #574
Description
>>> import typing as t; import typing_extensions as tx
>>> T = t.TypeAliasType("T", object)
>>> TX = tx.TypeAliasType("TX", object)
>>> T | TX
Traceback (most recent call last):
File "<python-input-5>", line 1, in <module>
T | TX
~~^~~~
TypeError: unsupported operand type(s) for |: 'typing.TypeAliasType' and 'TypeAliasType'this happens on Python 3.12 and 3.13
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