Board Thread:Episodic and Issue Discussion/@comment-47881-20130126152018/@comment-5188108-20130127185543

Trient wrote: One of my little nitpicks was that Miss M shouldve reverted to her real White Martian form after she got the inhibitor collar since Black Manta clearly said it negates all of her martian powers and her green skinned human form is from her morphing ability. Though maybe it wouldve choked her with her bigger body and all.

Earth 16's shapeshifting (or at least the Martian version; Clayface doesn't seem to work this way) is only required to change shape, not maintain it. So if the ability is taken away the shapeshifter is stuck in their current form, whether or not it is their true one.