do not fail listing terms when equivs is None
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@ -95,7 +95,7 @@ class ListKeywordsView(BrowserView):
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) :
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obj = brain.getObject()
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self._items.append((obj.title, obj.id))
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for equiv in obj.equivs:
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for equiv in (obj.equivs or []):
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self._items.append((equiv, obj.id))
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def cmp_keyword(x, y):
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