Add example of conditionally requiring a password [ci-skip]
Add example of conditionally requiring a password [ci-skip]

This example addresses the use case brought up by #45487, which has been
reverted by #45753.

yahonda/rails,georgeclaghorn/rails,esparta/rails,esparta/rails,rails/rails,rails/rails,Erol/rails,BlakeWilliams/rails,Erol/rails,rails/rails,BlakeWilliams/rails,Erol/rails,MSP-Greg/rails,MSP-Greg/rails,yahonda/rails,esparta/rails,MSP-Greg/rails,BlakeWilliams/rails,MSP-Greg/rails,BlakeWilliams/rails,georgeclaghorn/rails,georgeclaghorn/rails,esparta/rails,rails/rails,georgeclaghorn/rails,yahonda/rails,Erol/rails,yahonda/rails