news for behaviour change

KittenHero · KittenHero · commit 7dea2abf66f8 · 2018-08-21T00:42:21.000+10:00
diff --git a/Misc/NEWS.d/next/Library/2018-08-20-13-53-10.bpo-34427.tMRQjl.rst b/Misc/NEWS.d/next/Library/2018-08-20-13-53-10.bpo-34427.tMRQjl.rst
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+Fix ``a.extend(a)`` for ``MutableSequence`` subclasses

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	`1`	+Fix ``a.extend(a)`` for ``MutableSequence`` subclasses