Rotated flips are flipped badly

[barometz]

18:40:09 <@zetlen> Bucket: set rotate 100
18:40:10 <+Bucket> ˙uǝʃʇǝz 'ʎɐʞo

...

20:04:07 <@barometz> Bucket: flip yourself
20:04:08 < Bucket> ��ou��s�ǃʟɵ�ﯕ�(��!���¯��)

I'm not sure what happened but it seems like rotated flips should just be right side up? As it is, it doesn't render.
[tags: enhancement, cross-plugin compat, frivolous]