[sobjects/notification] fix broken email notifications In https://hg.logilab.org/review/cubicweb/rev/8caa109dfe945592a34904bb56971cc57d1c6084 EntityView.w become a method using EntityView._w In notifications we reset "self.w" for every notifications since we handle multiple streams. We should set "self._w" to None instead, otherwise subsequent calls to "self.w()" will fail with TypeError: 'NoneType' object is not callable.

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#!/usr/bin/env python3

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from cubicweb.cwctl import run

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run()