Поправить проблему при возврате после редактирования вводной (#3043)

Author: leotsarev

src/JoinRpg.Portal/Controllers/PlotController.cs

@@ -246,7 +246,7 @@ public async Task<ActionResult> DeleteElement(int plotelementid, int plotFolderI
 
     private ActionResult ReturnToPlot(int projectId, int plotFolderId) => RedirectToAction("Edit", new { projectId, plotFolderId });
 
-    private ActionResult ReturnToPlot(PlotFolderIdentification plotFolderId) => RedirectToAction("Edit", new { projectId = plotFolderId.ProjectId, plotFolderId = plotFolderId.PlotFolderId });
+    private ActionResult ReturnToPlot(PlotFolderIdentification plotFolderId) => RedirectToAction("Edit", new { projectId = plotFolderId.ProjectId.Value, plotFolderId = plotFolderId.PlotFolderId });
 
     [HttpGet, MasterAuthorize()]
     public async Task<ActionResult> EditElement(int plotelementid, int plotFolderId, int projectId)