[issue18960] First line can be executed twice

[Roundup Robot]

Roundup Robot added the comment:

New changeset dd1e21f17b1c by Serhiy Storchaka in branch '2.7':
Issue #22221: Backported fixes from Python 3 (issue #18960).
http://hg.python.org/cpython/rev/dd1e21f17b1c

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18960>
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