Add tests for muscle cache update ref=[#137599141]
Add tests for muscle cache update ref=[#137599141]

rolandgeider/wger,petervanderdoes/wger,wger-project/wger,wger-project/wger,wger-project/wger,petervanderdoes/wger,petervanderdoes/wger,rolandgeider/wger,wger-project/wger,petervanderdoes/wger,rolandgeider/wger,rolandgeider/wger