I am not sure if that is related to the head at all, or just SL weirdness. I had something similar happen yesterday, and I was wearing a Genus head. I spent a lot of time changing clothes and attachments and editing things in the proper place. I was having issues with the Maitreya HUD so I decided to relog. When I came back, I was wearing the applier I had been wearing before I changed, I was wearing the new clothes, but the alphas cuts were from my old outfit. The hair had reverted back to before I changed. I had both the ears from the Genus head AND my mesh ears attached. I was a hot mess. So I think what you had happen is just SL stuff.