update_attribute, alias_method_chain on a setter

update_attribute(:accepted,true) is calling accepted_with_create_curated_video=

update_attribute(:accepted_without_create_curated_video,true) is
calling accepted=

No where is :accepted getting set to true.

Any ideas? What is the way to write a setter that is alias_method_chained ??

xo xo,
Curtis.