BlameHunk line numbers are zero-based?

var x = 5;  // just an example
var options = new BlameOptions {MinLine = x, MaxLine = x};
var hunks = repository.Blame(path, options);
var hunk = hunks.HunkForLine(x);  // throws ArgumentOutOfRangeException: 'No hunk for that line'

It seems that though the line numbers in BlameOptions are one-based (according to the code comments), BlameHunkCollection.HunkForLine, BlameHunk.ContainsLine, BlameHunk.FinalStartLineNumber and BlameHunk.InitialStartLineNumber are all zero based.

Is this a bug, or intentional? If intentional, it would be good to add to the comments on all of these which base is to be expected. Thanks.

I can subtract one in the HunkForLine call to work around for now.

从 BlameOptions、BlameHunkCollection.HunkForLine、BlameHunk.ContainsLine 以及 FinalStartLineNumber 和 InitialStartLineNumber 属性开始。重现所示调用，比较文档记录的索引方式与观察到的索引方式，并确定是否应统一这些 API 或对其进行明确文档说明；当行为一致或已有明确规范时，即表示完成。