Revert "Revert "Add support to cherry-pick using secondary email in UI""

This reverts commit 1f9226d9bbc28eb4af9686bc4d6cda71a2c26736.

Reason for revert: Updated logic to not break for logged out users

Change-Id: I498ca59e9a385a2cdc26431d36e0ca69b7611250
Release-Notes: UI supports cherry-pick using a registered secondary email
diff --git a/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions.ts b/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions.ts
index 0be80bb..8f835de 100644
--- a/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions.ts
+++ b/polygerrit-ui/app/elements/change/gr-change-actions/gr-change-actions.ts
@@ -1610,6 +1610,7 @@
         base: el.baseCommit ? el.baseCommit : null,
         message: el.message,
         allow_conflicts: conflicts,
+        committer_email: el.committerEmail ? el.committerEmail : null,
       }
     );
   }