Don't allow slaves recruited with modified genitals to recruit their relatives
Don't allow slaves from TFS or corporate market slaves with modified genitals to recruit relatives, since we don't have valid pre-modification genepool entries for them. Fixes #4948
Ideally we'd do something cleverer, like passing the pre-modification state of the slave through in cases where we know the slave was modified for sale, and using that as the genepool record instead, but that seems like a lot of work. Could use a wrapper like GingeredSlave to keep things cleaner?
Also fixes the gating on REC Forbidden Love
(which generates a princess, and so should be valid for no-dicks playthroughs, but not for all-dicks playthroughs).
Edited by svornost