Merge pull request #13218 from maxunbearable/fix/6043-show-help-error

Fixed early updatePosition call to prevent CDK overlay crash in matSuffix context

ui-ngx/src/app/shared/components/popover.component.ts

@@ -472,7 +472,9 @@ export class TbPopoverComponent<T = any> implements OnDestroy, OnInit {
 
   set tbOverlayStyle(value: { [klass: string]: any }) {
     this._tbOverlayStyle = value;
-    this.cdr.detectChanges();
+    if (this.popover) {
+      this.cdr.detectChanges();
+    }
   }
 
   get tbOverlayStyle(): { [klass: string]: any } {