Re: [PATCHv2 6/7] builtin/describe.c: describe a blob

>> I know id prefer the first commit that introduced the blob. That's what
>> describing a commit does, it finds the oldest tag prior to the commit,
>> while --contains finds the first tag that contains the commit as an
>> ancestor.
>
> It is very easy to wish for "the oldest commit introducing a blob". But
> since we're in a DAG, this question is not necessarily easy to answer:
>
> - A - B - C
>     \   /
>       D
>
> Let's assume that all commits except A have the blob, and that B and D
> (for some reason) have the same author/committer dates.
>
> Do you identify B or D as the commit introducing the blob?