I don't mean to be insensitive about the poster's situation, but it would just seem to me that if you're going through with the long and dramatic process of changing your gender that the commit behavior of a common source code control system would be the least of your considerations.

Men may not change names as often as women, but they certainly change email addresses, job titles, and other affiliations. This creates very similar practical considerations, not just with SCCS, but with mailing list archives, web archives, and most every other form of electronic record.

This poster seems to have an issue with the static and un-malleable nature of the written past in general.