[issue5392] stack overflow after hitting recursion limit twice

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

The fact it fails only the second time is by design, although I'm not
sure the design is useful, and it's probably not documented anywhere.
The error message says it : "Cannot *recover* from stack overflow",
which means there was a first stack overflow, and Python thinks it has
failed recovering from it since a second stack overflow occurred
afterwards.

We could probably make the recovery detection smarter.

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