For my rails application i have declared questions model as acts_as_taggable_on. For this i am using dynamic context tagging. For me Question.custom_contexts which is expected to give list of contexts doesn't work and returns empty array, though there are custom contexts. But after using Questioin.tag_list_on(:applications) and then trying to run Question.cutom_contexts return ["applications"] array.(and so on for all other custom contexts.) What might be problem? Is this some kind of caching plugins uses or a bug?