cloud-notifications: use the proper event type

Change-Id: I56418edd92729a6a4c6292d2f765a1cf5330ce3f
Signed-off-by: Jorge Ruesga <j.ruesga.criado@gmail.com>
diff --git a/src/main/java/com/ruesga/gerrit/plugins/fcm/handlers/AssigneeChangedEventHandler.java b/src/main/java/com/ruesga/gerrit/plugins/fcm/handlers/AssigneeChangedEventHandler.java
index be0e02b..9ae578e 100644
--- a/src/main/java/com/ruesga/gerrit/plugins/fcm/handlers/AssigneeChangedEventHandler.java
+++ b/src/main/java/com/ruesga/gerrit/plugins/fcm/handlers/AssigneeChangedEventHandler.java
@@ -60,7 +60,7 @@
     }
 
     protected int getEventType() {
-        return CloudNotificationEvents.TOPIC_CHANGED_EVENT;
+        return CloudNotificationEvents.ASSIGNEE_CHANGED_EVENT;
     }
 
     protected NotifyType getNotifyType() {