Fix sav path after exporting to new name (#2791)

PKHeX.WinForms/MainWindow/Main.cs

@@ -1196,7 +1196,10 @@ private void ClickExportSAVBAK(object sender, EventArgs e)
         private void ClickExportSAV(object sender, EventArgs e)
         {
             if (Menu_ExportSAV.Enabled)
+            {
                 C_SAV.ExportSaveFile();
+                Text = GetProgramTitle(C_SAV.SAV);
+            }
         }
 
         private void ClickSaveFileName(object sender, EventArgs e)

PKHeX.WinForms/Util/WinFormsUtil.cs

@@ -362,6 +362,7 @@ private static void ExportSAV(SaveFile sav, string path)
             {
                 File.WriteAllBytes(path, sav.Write(flags));
                 sav.Edited = false;
+                sav.SetFileInfo(path);
                 Alert(MsgSaveExportSuccessPath, path);
             }
             catch (Exception x)