Fix updating primary groups for players who've never joined the server with SQL storage types (#500)

bukkit/src/main/java/me/lucko/luckperms/bukkit/migration/MigrationPermissionsEx.java

@@ -143,6 +143,10 @@ public class MigrationPermissionsEx extends SubCommand<Object> {
                 continue;
             }
 
+            // save uuid data for the user
+            plugin.getStorage().saveUUIDData(u, user.getName());
+
+            // load in a user instance
             plugin.getStorage().loadUser(u, user.getName()).join();
             User lpUser = plugin.getUserManager().getIfLoaded(u);
 

bukkit/src/main/java/me/lucko/luckperms/bukkit/migration/MigrationZPermissions.java

@@ -168,6 +168,7 @@ public class MigrationZPermissions extends SubCommand<Object> {
                 username = entity.getDisplayName();
             }
 
+            plugin.getStorage().saveUUIDData(u, String.valueOf(username)).join();
             plugin.getStorage().loadUser(u, username).join();
             User user = plugin.getUserManager().getIfLoaded(u);