David Lyle ab3cdfd1c9 Fixing potential attribute access on None
Specifically when writing tests, the nav method in the settings
dashboard.py file can potentially attempt to access slug on None.

Closes-bug: #1291050

Change-Id: I6df58d26f5df71ac7c605c5d77b9aa9d8d811956
2014-03-11 15:10:53 -06:00
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