Conflict with xform

Description

Steps to reproduce

1. Install an MVC site with Xforms.
2. Install Forms.
3. Create a Xform 1.
4. Create an episerver Form: EpiForm2.
5. Add Xform1 & EpiForm2 to the same page.
6. Submit the Xform.

Expected: Submit successfully

Actual : Error
Server Error in '/' Application.
Your anti-forgery token is not correct!
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.Mvc.HttpAntiForgeryException: Your anti-forgery token is not correct!

Source Error:

Line 35: try
Line 36:

Line 39: catch (NullReferenceException ex)

Source File: C:\Episerver\mvc11x\mvc11x\Business\Rendering\ErrorHandlingContentRenderer.cs Line: 37

Stack Trace:

[HttpAntiForgeryException (0x80004005): Your anti-forgery token is not correct!]
EPiServer.Forms.Internal.Security.AntiForgeryService.Validate(HttpContextBase httpContext) +475
EPiServer.Forms.Controllers.FormContainerBlockController.Index(FormContainerBlock currentBlock) +334
lambda_method(Closure , ControllerBase , Object[] ) +106
System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +14
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +157
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +27
System.Web.Mvc.Async.AsyncControllerActionInvoker.<BeginInvokeSynchronousActionMethod>b__39(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +22
System.Web.Mvc.Async.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult) +29
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +32
System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d() +50
System.Web.Mvc.Async.<>c_DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b_3f() +228
System.Web.Mvc.Async.<>c_DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b_3f() +228
System.Web.Mvc.Async.<>c_DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b_3f() +228
System.Web.Mvc.Async.<>c_DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b_3f() +228
System.Web.Mvc.Async.<>c_DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b_3f() +228
System.Web.Mvc.Async.<>c_DisplayClass33.<BeginInvokeActionMethodWithFilters>b_32(IAsyncResult asyncResult) +10
System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +10
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +34
System.Web.Mvc.Async.<>c_DisplayClass2b.<BeginInvokeAction>b_1c() +26
System.Web.Mvc.Async.<>c_DisplayClass21.<BeginInvokeAction>b_1e(IAsyncResult asyncResult) +100
System.Web.Mvc.Async.WrappedAsyncResult`1.CallEndDelegate(IAsyncResult asyncResult) +10
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +27
System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState) +13
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +29
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +36
System.Web.Mvc.Controller.<BeginExecute>b__15(IAsyncResult asyncResult, Controller controller) +12
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +22
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +26
System.Web.Mvc.Controller.System.Web.Mvc.Async.IAsyncController.EndExecute(IAsyncResult asyncResult) +10
System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState) +21
System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +29
System.Web.Mvc.Async.WrappedAsyncResultBase`1.End() +49
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +28
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9
System.Web.Mvc.<>c_DisplayClassa.<EndProcessRequest>b_9() +22
System.Web.Mvc.<>c_DisplayClass4.<Wrap>b_3() +10
System.Web.Mvc.ServerExecuteHttpHandlerWrapper.Wrap(Func`1 func) +53
System.Web.Mvc.ServerExecuteHttpHandlerWrapper.Wrap(Action action) +65
System.Web.Mvc.ServerExecuteHttpHandlerAsyncWrapper.EndProcessRequest(IAsyncResult result) +70
System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride) +1436

[HttpException (0x80004005): Error executing child request for handler 'System.Web.Mvc.HttpHandlerUtil+ServerExecuteHttpHandlerAsyncWrapper'.]
System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride) +3480364
System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage) +76
System.Web.HttpServerUtility.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm) +29
System.Web.HttpServerUtilityWrapper.Execute(IHttpHandler handler, TextWriter writer, Boolean preserveForm) +24
System.Web.Mvc.Html.ChildActionExtensions.ActionHelper(HtmlHelper htmlHelper, String actionName, String controllerName, RouteValueDictionary routeValues, TextWriter textWriter) +460
EPiServer.Web.Mvc.PartialRequest.RenderAction(HtmlHelper helper, String action, String controller, Object routeValues) +42
EPiServer.Web.Mvc.Internal.DefaultMvcContentRenderer.Render(HtmlHelper helper, PartialRequest partialRequestHandler, IContentData contentData, TemplateModel templateModel) +371
EPiServer.Web.Mvc.MvcContentRenderer.Render(HtmlHelper helper, PartialRequest partialRequestHandler, IContentData contentData, TemplateModel templateModel) +39
mvc11x.Business.Rendering.ErrorHandlingContentRenderer.Render(HtmlHelper helper, PartialRequest partialRequestHandler, IContentData contentData, TemplateModel templateModel) in C:\Episerver\mvc11x\mvc11x\Business\Rendering\ErrorHandlingContentRenderer.cs:37
EPiServer.Web.Mvc.Html.IContentDataExtensions.RenderContentData(HtmlHelper html, IContentData contentData, Boolean isContentInContentArea, TemplateModel templateModel, IContentRenderer contentRenderer, Func`1 partialRequest) +416
EPiServer.Web.Mvc.Html.ContentAreaRenderer.RenderContentAreaItem(HtmlHelper htmlHelper, ContentAreaItem contentAreaItem, String templateTag, String htmlTag, String cssClass) +921
EPiServer.Web.Mvc.Html.ContentAreaRenderer.RenderContentAreaItems(HtmlHelper htmlHelper, IEnumerable`1 contentAreaItems) +126
EPiServer.Web.Mvc.Html.ContentAreaRenderer.Render(HtmlHelper htmlHelper, ContentArea contentArea) +265
EPiServer.Web.Mvc.Html.ContentAreaExtensions.RenderContentArea(HtmlHelper htmlHelper, ContentArea contentArea) +50
ASP.util_views_shared_displaytemplates_contentarea_ascx._Render_control1(HtmlTextWriter __w, Control parameterContainer) in C:\Episerver\mvc11x\mvc11x\Util\Views\Shared\DisplayTemplates\ContentArea.ascx:4
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +268
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +13
System.Web.UI.Control.Render(HtmlTextWriter writer) +12
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +66
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +100
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +128
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +13
System.Web.Mvc.ViewPage.Render(HtmlTextWriter writer) +53
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +66
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +100
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1303

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.2623.0