code: Fix incorrect listing of files in subdirectory
code: Fix incorrect listing of files in subdirectory

Reason: jgit-log produces incorrect logs under the certain conditions.
For the detailed bug report, see
http://dev.eclipse.org/mhonarc/lists/jgit-dev/msg02461.html

Solution: If jgit-log gives incorrect commit while commit traversal,
skip the commit and continue.

Limseunghwan/oss,naver/yobi,bloodybear/yona,ahb0327/yobi,doortts/forked-for-history,doortts/fork-yobi,violetag/demo,ihoneymon/yobi,oolso/yobi,yona-projects/yona,Limseunghwan/oss,brainagenet/yobi,yona-projects/yona,yona-projects/yona,oolso/yobi,doortts/fork-yobi,naver/yobi,oolso/yobi,bloodybear/yona,doortts/forked-for-history,bloodybear/yona,doortts/fork-yobi,doortts/forked-for-history,ihoneymon/yobi,brainagenet/yobi,doortts/fork-yobi,yona-projects/yona,naver/yobi,ihoneymon/yobi,ahb0327/yobi,ahb0327/yobi,brainagenet/yobi,ChangsungKim/TestRepository01,ChangsungKim/TestRepository01,violetag/demo,Limseunghwan/oss,bloodybear/yona