Unless you were in a “Tom Hanks in Cast Away”-like scenario over the last month, you undoubtedly noticed the buzz around the release of Popeyes’ chicken sandwich. If you were stranded on a desert island, catch up here. The demand for this apparently delicious sandwich was so great that Popeyes entirely “ran out” of chicken fillets and won’t be re-releasing the sandwich until early October — more likely a savvy demand-generation ploy rather than a failure of projections and sourcing,…