Add query for nova unit test race bug 1349147

8 hits in 7 days, check and gate, all failures.

Since this is a unit test race I'm querying
on the test case name; looks like this started
showing up around 7/21.

Change-Id: I802879aac8e0fb35e2bdb7c88e97a5a2b58670ee
Related-Bug: #1349147