Mgiration: Offline packages can be executed even if its disabled.
After creating an offline migration package, user should not be allowed to execute this package. Bug: Currently the user can.
This is a bug for now, but related to issue #4206 targetted for next release. As part of #4206 implementation would be fixed by enabling the button instead of disabling it. If #4206 is not released, then the fix would be to not open the exexcution page for offline package.