Respawning in dimensions should now properly set the dimension ID for the new player instance.

forge/patches/minecraft_server/net/minecraft/src/ServerConfigurationManager.java.patch

@@ -62,7 +62,15 @@
      }
  
      /**
-@@ -289,6 +294,10 @@
+@@ -245,6 +250,7 @@
+             var5.copyPlayer(par1EntityPlayerMP);
+         }
+ 
++        var5.dimension = par2;
+         var5.entityId = par1EntityPlayerMP.entityId;
+         var5.playerNetServerHandler = par1EntityPlayerMP.playerNetServerHandler;
+         WorldServer var6 = this.mcServer.getWorldManager(par1EntityPlayerMP.dimension);
+@@ -289,6 +295,10 @@
       */
      public void sendPlayerToOtherDimension(EntityPlayerMP par1EntityPlayerMP, int par2)
      {
@@ -73,7 +81,7 @@
          int var3 = par1EntityPlayerMP.dimension;
          WorldServer var4 = this.mcServer.getWorldManager(par1EntityPlayerMP.dimension);
          par1EntityPlayerMP.dimension = par2;
-@@ -296,33 +305,14 @@
+@@ -296,33 +306,14 @@
          par1EntityPlayerMP.playerNetServerHandler.sendPacket(new Packet9Respawn(par1EntityPlayerMP.dimension, (byte)par1EntityPlayerMP.worldObj.difficultySetting, var5.getWorldInfo().getTerrainType(), var5.getHeight(), par1EntityPlayerMP.itemInWorldManager.getGameType()));
          var4.removePlayer(par1EntityPlayerMP);
          par1EntityPlayerMP.isDead = false;
@@ -113,7 +121,7 @@
          {
              ChunkCoordinates var12 = var5.getEntrancePortalLocation();
              var6 = (double)var12.posX;
-@@ -342,7 +332,7 @@
+@@ -342,7 +333,7 @@
              par1EntityPlayerMP.setLocationAndAngles(var6, par1EntityPlayerMP.posY, var8, par1EntityPlayerMP.rotationYaw, par1EntityPlayerMP.rotationPitch);
              var5.updateEntityWithOptionalForce(par1EntityPlayerMP, false);
              var5.chunkProviderServer.chunkLoadOverride = true;
@@ -122,7 +130,7 @@
              var5.chunkProviderServer.chunkLoadOverride = false;
          }
  
-@@ -372,9 +362,9 @@
+@@ -372,9 +363,9 @@
              this.sendPacketToAllPlayers(new Packet201PlayerInfo(var1.username, true, var1.ping));
          }
  
@@ -134,7 +142,7 @@
          }
      }
  
-@@ -907,7 +897,7 @@
+@@ -907,7 +898,7 @@
  
      public String[] func_52019_t()
      {