roc+%cs.cmu.edu bf8fd335a9 Bug 296628. Don't crash when traversal is at the root and we try to go up. r+sr=bzbarsky,a=asa ...

git-svn-id: svn://10.0.0.236/trunk@174752 18797224-902f-48f8-a5cc-f745e15eee43

2005-06-17 02:50:15 +00:00

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