Merge branch 'cm_2001686_edit-activity_exception' into '2021.2.3'

[Projekt: xRM-ContactManagement][TicketNr.: 2001686][Aktivität - Fehler im...

See merge request xrm/basic!1559

entity/Activity_entity/entityfields/hasadvertising/valueProcess.js

@@ -12,10 +12,11 @@ if(vars.get("$sys.operatingstate") == neon.OPERATINGSTATE_NEW)
 }
 else if(vars.get("$field.ACTIVITYID"))
 { 
-    var count = new SqlBuilder().selectCount()
-                .from("ADVERTISING")
-                .where("ADVERTISING.OBJECT_ROWID", "ACTIVITY.ACTIVITYID")
-                .toString()
+    var count = new SqlBuilder()
+                        .selectCount()
+                        .from("ADVERTISING")
+                        .where("ADVERTISING.OBJECT_ROWID", "ACTIVITY.ACTIVITYID")
+                        .cell();
 
     result.string(count);
 }