ChangeScreen2: Reload the change screen on every submit failure

A failure on submit might result in a new change message that contains
the error message. The change screen should be reloaded so that the
new change message is displayed.

Change-Id: I55bdea185440f5a64259cf5245d6468a72fd412e
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>

gerrit-gwtui/src/main/java/com/google/gerrit/client/change/SubmitAction.java

@@ -33,10 +33,10 @@ class SubmitAction {
         public void onFailure(Throwable err) {
           if (SubmitFailureDialog.isConflict(err)) {
             new SubmitFailureDialog(err.getMessage()).center();
-            redisplay();
           } else {
             super.onFailure(err);
           }
+          redisplay();
         }
 
         private void redisplay() {