Some file can't be tracked by Commits.QueryBy(path)

I use to following code to track the latest change for a special file. But I found some file can't be tracked while the others can be tracked correctly.

var latestCommitLog = repository.Commits.QueryBy(file);
if (latestCommitLog.Count() > 0)
{
        var latestCommit = latestCommitLog.First().Commit;
}
else 
{
        // no history
        // some file has be pushed to repository but can't be tracked.
}

该 issue 只指出了 repository.Commits.QueryBy(file)；首先使用一个能够正常工作的受跟踪文件和一个无法正常工作的受跟踪文件重现问题，同时记录它们的路径详情和 repository 状态。跟踪该 API 调用，以确定结果为空的原因。完成的标准是：出问题的文件返回其最新 commit，并且有一个 regression test 覆盖该情况。