From c11f1fb965e89b7aeab7c6e957f649ab93bdd5b1 Mon Sep 17 00:00:00 2001
From: Vladyslav_Prykhodko <vprykhodko@thingsboard.io>
Date: Tue, 27 Jul 2021 11:14:09 +0300
Subject: [PATCH] UI: Fixed update state: not clear state params

---
 .../dashboard-page/states/state-controller.component.ts        | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ui-ngx/src/app/modules/home/components/dashboard-page/states/state-controller.component.ts b/ui-ngx/src/app/modules/home/components/dashboard-page/states/state-controller.component.ts
index 63ad7dbcaf..5acf57095f 100644
--- a/ui-ngx/src/app/modules/home/components/dashboard-page/states/state-controller.component.ts
+++ b/ui-ngx/src/app/modules/home/components/dashboard-page/states/state-controller.component.ts
@@ -129,7 +129,8 @@ export abstract class StateControllerComponent implements IStateControllerCompon
   protected updateStateParam(newState: string, replaceCurrentHistoryUrl = false) {
     this.currentState = newState;
     if (this.syncStateWithQueryParam) {
-      const queryParams: Params = {state: encodeURIComponent(this.currentState)};
+      const state = this.currentState ? encodeURIComponent(this.currentState) : this.currentState;
+      const queryParams: Params = {state};
       this.ngZone.run(() => {
         this.router.navigate(
           [],