Merge changes Ibdcfa4f1,Ibf4540ac into stable-2.16

* changes:
  Submit: Show submit with tooltip when unauthorized/WIP
  Submit: Do not ignore problems for the change itself

java/com/google/gerrit/server/restapi/change/Submit.java

@@ -254,11 +254,6 @@ public class Submit
         return BLOCKED_HIDDEN_SUBMIT_TOOLTIP;
       }
       for (ChangeData c : cs.changes()) {
-        if (cd.getId().equals(c.getId())) {
-          // We ignore the change about to be submitted, as these checks are already done in the
-          // #apply and #getDescription methods.
-          continue;
-        }
         Set<ChangePermission> can =
             permissionBackend
                 .user(user)
@@ -307,10 +302,7 @@ public class Submit
   @Override
   public UiAction.Description getDescription(RevisionResource resource) {
     Change change = resource.getChange();
-    if (!change.getStatus().isOpen()
-        || change.isWorkInProgress()
-        || !resource.isCurrent()
-        || !resource.permissions().testOrFalse(ChangePermission.SUBMIT)) {
+    if (!change.getStatus().isOpen() || !resource.isCurrent()) {
       return null; // submit not visible
     }