change 3dformat xml tag to Video3DFormat

MediaBrowser.Controller/Providers/BaseItemXmlParser.cs

@@ -586,7 +586,7 @@ namespace MediaBrowser.Controller.Providers
                 {
                     switch (reader.Name)
                     {
-                        case "3DFormat":
+                        case "Video3DFormat":
                             {
                                 var video = item as Video;
 

MediaBrowser.Providers/Movies/MovieDbProvider.cs

@@ -575,7 +575,8 @@ namespace MediaBrowser.Providers.Movies
                 Logger.Info("MoviedbProvider: Ignoring " + item.Name + " because ID forced blank.");
                 return;
             }
-            if (item.GetProviderId(MetadataProviders.Tmdb) == null) item.SetProviderId(MetadataProviders.Tmdb, id);
+            
+            item.SetProviderId(MetadataProviders.Tmdb, id);
 
             var mainResult = await FetchMainResult(item, id, cancellationToken).ConfigureAwait(false);
 

MediaBrowser.Providers/Savers/XmlSaverHelpers.cs

@@ -453,16 +453,16 @@ namespace MediaBrowser.Providers.Savers
                         switch (video.Video3DFormat.Value)
                         {
                             case Video3DFormat.FullSideBySide:
-                                builder.Append("<3DFormat>FSBS</3DFormat>");
+                                builder.Append("<Video3DFormat>FSBS</3DFormat>");
                                 break;
                             case Video3DFormat.FullTopAndBottom:
-                                builder.Append("<3DFormat>FTAB</3DFormat>");
+                                builder.Append("<Video3DFormat>FTAB</3DFormat>");
                                 break;
                             case Video3DFormat.HalfSideBySide:
-                                builder.Append("<3DFormat>HSBS</3DFormat>");
+                                builder.Append("<Video3DFormat>HSBS</3DFormat>");
                                 break;
                             case Video3DFormat.HalfTopAndBottom:
-                                builder.Append("<3DFormat>HTAB</3DFormat>");
+                                builder.Append("<Video3DFormat>HTAB</3DFormat>");
                                 break;
                         }
                     }