Releasing secured projects will not prompt username/password needed with SCM Username and SCM Password not provided on release:perform goals

Steps to replicate:
1. Add a secured project
2. Build the project
3. Release the project

• in release:prepare, do not provide values in SCM Username and SCM Password

actual result:
release:perform goal was successful.

It should not execute the release:perform goal, thus it must prompt a message asking for the SCM Username and SCM Password.