Resolved #1727: Should stay on the same page after language switch.

framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Basic/Themes/Basic/Components/Toolbar/LanguageSwitch/Default.cshtml

@@ -8,7 +8,7 @@
     <div class="dropdown-menu dropdown-menu-right border-0 shadow-sm" aria-labelledby="dropdownMenuLink">
         @foreach (var language in Model.OtherLanguages)
         {
-            <a class="dropdown-item" href="/Abp/Languages/Switch?culture=@(language.CultureName)&uiCulture=@(language.UiCultureName)">@language.DisplayName</a>
+            <a class="dropdown-item" href="/Abp/Languages/Switch?culture=@(language.CultureName)&uiCulture=@(language.UiCultureName)&returnUrl=@Context.Request.Path">@language.DisplayName</a>
         }
     </div>
 </div>

framework/src/Volo.Abp.AspNetCore.Mvc/Volo/Abp/AspNetCore/Mvc/Localization/AbpLanguagesController.cs

@@ -29,6 +29,7 @@ namespace Volo.Abp.AspNetCore.Mvc.Localization
             {
                 return Redirect(GetRedirectUrl(returnUrl));
             }
+
             return Redirect("/");
         }