[issue13083] _sre: getstring() releases the buffer before using it

[Serhiy Storchaka]

Changes by Serhiy Storchaka <storchaka at gmail.com>:


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components: +Regular Expressions
nosy: +ezio.melotti, mrabarnett, serhiy.storchaka
versions: +Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue13083>
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