[issue157] Workaround for mirrors without a mirror attribute

[Pascal Bleser at Labix Tracker]

New submission from Pascal Bleser <guru at unixtech.be>:

It seems that under some circumstances (could not be reproduced consistently,
has been reported by few users), a mirror object has no mirror attribute, which
causes a crash in smart/mirror.py

The attached patch checks whether a mirror object actually has a mirror
attribute before accessing it, which acts as a workaround to that problem.

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files: smart-mirror-workaround.diff
messages: 500
nosy: loki
priority: bug
project: smart
status: unread
title: Workaround for mirrors without a mirror attribute

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Labix issue tracker <tracker at labix.org>
<http://tracker.labix.org/issue157>
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