Fix single datepicker end date assignment bug

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Shared/wwwroot/libs/abp/aspnetcore-mvc-ui-theme-shared/bootstrap/dom-event-handlers.js

@@ -644,7 +644,7 @@
                     if (momentStartDate.isValid()) {
                         picker.setStartDate(momentStartDate);
                     }
-                    if (momentEndDate.isValid()) {
+                    if (momentEndDate.isValid() && !singleDatePicker) {
                         picker.setEndDate(momentEndDate);
                     }
                 });