title: How to rollback to a previous commit in Jenkins?
body: <p>I have a previous commit sha. How do I roll back to a previous commit in Jenkins? </p>
  
  <p>I have a main project with submodules. </p>
  
  <p>I'm thinking I can pass in the previous commit sha to the build parametrized field. Also, I have submodules, how do I rollback the submodules to the previous commit using the main project commit sha?  </p>