Unstage file and disposing Repository

Hello Im new in gitlib2sharp world and maybe I dont know all issues but here is my problem or maybe a bug.

using (var repo = new Repository(path))
{
     FileStatus statusOfFileBeforeUnstageInFirstScope = repo.RetrieveStatus(relativePath);
     Commands.Unstage(repo, relativePath);
     FileStatus statusOfFileAfterUnstageInFirstScope = repo.RetrieveStatus(relativePath);
}

using (var repo = new Repository(path))
{
     FileStatus statusOfFileAfterUnsgaeSecondScope= repo.RetrieveStatus(relativePath);
}

Can someone tell me why variables statusOfFileBeforeUnstageInFirstScope and statusOfFileAfterUnsgaeSecondScope has same values: 'ModifiedInIndex'. After Unstage operation I have good state but after disposing Repository state is changed.

从 issue 中所示的 Repository(path) 生命周期以及 Commands.Unstage 和 RetrieveStatus 调用开始。使用 scope 比较每个调用内部报告的状态，并比较 Repository 释放后的状态；完成的标准是：释放相关的状态行为已得到解释或纠正，且前后结果一致。