Board Thread:General Discussion/@comment-5679696-20160516030608/@comment-24304025-20160517142231

It is not accurate to use the EQ page. That's for her identity before the Dark Curse.

If Mary Margaret drinks the potion, it will create a second body for her with her dark feelings, but that won't be Snow White. Ir will be the incarnation of Mary Margaret's darkness.

It just happens that, in Regina's case, it is called the Evil Queen, but that is not her identity from before the curse. It is just like when Regina was under the Spell of Shattered Sight. She was referred to as Evil Queen, dressed and behaved (behove?) like Evil Queen, but she was still Regina Mills.