[issue44562] types.GenericAlias should decref instead of using delete in tp_new

[Pablo Galindo Salgado]

Pablo Galindo Salgado <pablogsal at gmail.com> added the comment:

> And is is correct to call deallocator for not initialized GenericAlias object?

The correct thing to do is to call Py_DECREF so the object is properly unlinked and the other potential cleanups work. Calling the deallocator directly is almost always dangerous.

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<https://bugs.python.org/issue44562>
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