I am trying to add a new custom widget in the builder (under client\stemapp\widgets). However when I update the code of my widget it does not seem to be reflected in the App Builder. For instance I had in my app a syntax error due to my bad widget code, then I changed the code and I can still see that the old widget code in use.
Restart the App Builder does not seem to have an effect neither building a new app with the widget.
Tried to remove server/db files without success, can someone explain how to make custom widget code updates reflect in the App Builder ?