validate openAPI schema while rolling back

Signed-off-by: Nitin Malik <nitinmalik02015@gmail.com>

pkg/action/rollback.go

@@ -146,11 +146,12 @@ func (r *Rollback) performRollback(currentRelease, targetRelease *release.Releas
 		return targetRelease, nil
 	}
 
-	current, err := r.cfg.KubeClient.Build(bytes.NewBufferString(currentRelease.Manifest), false)
+	current, err := r.cfg.KubeClient.Build(bytes.NewBufferString(currentRelease.Manifest), true)
 	if err != nil {
 		return targetRelease, errors.Wrap(err, "unable to build kubernetes objects from current release manifest")
 	}
-	target, err := r.cfg.KubeClient.Build(bytes.NewBufferString(targetRelease.Manifest), false)
+
+	target, err := r.cfg.KubeClient.Build(bytes.NewBufferString(targetRelease.Manifest), true)
 	if err != nil {
 		return targetRelease, errors.Wrap(err, "unable to build kubernetes objects from new release manifest")
 	}