Hi, I want to use the method Reset or Checkout to switch to my history versions. It is expected that, if I give an invalid commit Hash, Reset or Checkout will abort and return a non-nil error.

In the following code, I give Reset an invalid plumbing Hash. However, unexpected things happened:

err := wtree.Reset(&git.ResetOptions{
		Commit: plumbing.NewHash("477596ec43c530ce09519b8297f50614ac9a5675"),
		Mode:   git.HardReset,
	})
if err != nil {
         panic(err)
}

Although err != nil and there will be a panic, the worktree is switched to a bad state. Now when I send the command git log on shell, I get fatal: bad object HEAD.

That is, Reset or Checkout won't rollback when failed. The HEAD will be changed to a bad object.