Revert "use string based program key in migration"
Revert "use string based program key in migration"

This reverts commit 949ccd9f8ba5de0f9e28fcc74c8242b06445aa18.

babybunny/rebuildingtogethercaptain,babybunny/rebuildingtogethercaptain,babybunny/rebuildingtogethercaptain,babybunny/rebuildingtogethercaptain