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4dd7f2ac54
The availability condition get_description method is called while gathering data for the modinfo object. As such it is not safe to call other functions which might rely on modinfo, such as format_string (if using filters which access modinfo). This change provides a mechanism to call format_string later, and also a general callback to do other stuff later as well if needed. It uses the same approach already taken to make activity names work correctly in the availability_condition class.