mass update futago_no_haha_seihonnou -> futago_no_boseihonnou
This is the correct reading of the game name 双子ノ母性本能 according to Erogamescape (the EGS furigana search only finds this game with the proposed reading). The old tag treats 母 and 性本能 as separate kanji groups, while the proposed new tag treats 母性本能 as a single kanji group.
Edit: Wait, I'm an idiot, the game's title screen shows the "haha" reading. Rejecting then. I guess I didn't expect a Japanese site to be the wrong one. I'll consider seeing how to get the reading fixed on EGS.
Edit 2: Got the furigana fixed on EGS!
The bulk update request #1350 has been rejected.
Updated