GUACAMOLE-1387: Update and filter tiled connections only if group is actually changing.
diff --git a/guacamole/src/main/frontend/src/app/client/controllers/clientController.js b/guacamole/src/main/frontend/src/app/client/controllers/clientController.js
index 32aa2b1..89654b5 100644
--- a/guacamole/src/main/frontend/src/app/client/controllers/clientController.js
+++ b/guacamole/src/main/frontend/src/app/client/controllers/clientController.js
@@ -284,6 +284,10 @@
      */
     const setAttachedGroup = function setAttachedGroup(managedClientGroup) {
 
+        // Do nothing if group is not actually changing
+        if ($scope.clientGroup === managedClientGroup)
+            return;
+
         if ($scope.clientGroup) {
 
             // Remove all disconnected clients from management (the user has