Fix generation of female FNR

[terjew]

I found and fixed an issue with generation of female FNRs. The adjustment to odd seeds for male was working correctly, but the adjustment to even seeds for female was missing.

[terjew]

By the way, the bug also causes the non-specific generation of ids to be heavily weighted towards generating males, due to the way it is setup. When asking for a non-specified gender, the generator specifies it using Random.NextGender() which means it will also hit the buggy codepath. The net result is that around 75% of the ids generated will be male, rather than the expected 50%.

[khellang]

Tusen takk! 🙏🏻 Kult at noen andre også bruker biblioteket 😁 v1.2.3 ligger i indekseringskøen hos NuGet

[terjew]

Herlig! Takk for kjapp respons 😁