[issue17206] Py_XDECREF() expands its argument multiple times

[Jeremy Kloth]

Jeremy Kloth added the comment:

I'm unsure as to how to get a stack trace from Visual Studio, but I can assure you that the changes introduced by the change aff41a6421c2 *is* the cause of the failure in test_marshal.

In a nutshell, the overflow happens in a recursion on the marhsal.c:r_object() function for the test_marshal test of BugsTestCase.test_loads_recursion().

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue17206>
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