Re: Have git SHA1 ID's changed in the last 5 years?

[Benkő Pál]

2014-07-27 9:54 GMT+02:00 David Kastrup <address@hidden>:
> Benkő Pál <address@hidden> writes:
>
>>> Okay, so I'm not crazy.  I happened to keep an old repo from
>>> four years ago, and as you can see from the attached image,
>>> the two histories are not the same, and neither are the
>>> commit SHA1 IDs...  How did this happen, and could it happen
>>> again?
>>
>> could you track down the first divergence and/or give more info
>> about those repositories?  I've tried to check the commits
>> shown in your attached picture, but couldn't find any.
>> in fact the authors are quite suspicious, in my repo there's
>> no commit from fred, neither any from 1999-10-05.
>
> In ~/.mailmap I see a line
>
> Han-Wen Nienhuys and Jan Nieuwenhuizen <fred> # see note below
>
> but in my repository no commits authored by fred, so this suggests to me
> someone rewriting the history of the repository at some point of time in
> order to get rid of nonsensical author attributions.

well, the difference in dates is still to be explained.  1.3.0 happened on
1999-10-26 with 3a0e9efb7f067e5b334ba0596b95e15d96d7cc49,
matching neither of Mark's repos.

p