[docs] [issue32349] Add detailed return value information for set.intersection function

[Raymond Hettinger]

Raymond Hettinger <raymond.hettinger at gmail.com> added the comment:

The implementation detail is not documented because it is not guaranteed.  The behavior has changed over time and other implementation are allowed to do something different.  For example, collections.abc.Set.__and__ has different behavior.

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resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32349>
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